The military history of Greece during World War II began on 28 October 1940, when the Italian Army invaded from Albania, beginning the Greco-Italian War. The Greek Army was able to halt the invasion temporarily and was able to push the Italians back into Albania. The Greek successes forced Nazi Germany to intervene. The Germans invaded Greece and Yugoslavia on 6 April 1941, and overran both countries within a month, despite British aid to Greece in the form of an expeditionary corps. The conquest of Greece was completed in May with the capture of Crete from the air, although the Fallschirmjäger (German paratroopers) suffered such extensive casualties in this operation that the Oberkommando der Wehrmacht (German High Command) abandoned large-scale airborne operations for the remainder of the war. The German diversion of resources in the Balkans is also considered by some historians to have delayed the launch of the invasion of the Soviet Union by a critical month, which proved disastrous when the German Army failed to take Moscow.
This article is about the Italian Royal Army which participated in World War II.
Albania, officially the Republic of Albania, is a country in Southeast Europe on the Adriatic and Ionian Sea within the Mediterranean Sea. It shares land borders with Montenegro to the northwest, Kosovo to the northeast, North Macedonia to the east, Greece to the south and a maritime border with Italy to the west.
The Greco-Italian War took place between the kingdoms of Italy and Greece from 28 October 1940 to 23 April 1941. This local war began the Balkans Campaign of World War II between the Axis powers and the Allies. It turned into the Battle of Greece when British and German ground forces intervened early in 1941.
Greece itself was occupied and divided between Germany, Italy and Bulgaria, while the King and the government fled into exile in Egypt. First attempts at armed resistance in summer 1941 were crushed by the Axis powers, but the Resistance movement began again in 1942 and grew enormously in 1943 and 1944, liberating large parts of the country's mountainous interior and tying down considerable Axis forces. However, political tensions between the Resistance groups resulted in the outbreak of a civil conflict among them in late 1943, which continued until the spring of 1944. The exiled Greek government also formed armed forces of its own, which served and fought alongside the British in the Middle East, North Africa and Italy. The contribution of the Greek Navy and merchant marine in particular was of special importance to the Allied cause.
The Greek government-in-exile was the government in exile of Greece formed in the aftermath of the Battle of Greece, and the subsequent occupation of Greece by Nazi Germany and the Fascist Italy, also by the Kingdom of Bulgaria. The government-in-exile was based in Cairo, Egypt. Hence it is also commonly referred to as the "Cairo Government". It was the internationally recognised Greek government, during the years of the Axis occupation of Greece.
The Axis powers, also known as "Rome–Berlin–Tokyo Axis", were the nations that fought in World War II against the Allies. The Axis powers agreed on their opposition to the Allies, but did not completely coordinate their activity.
The Greek Resistance is the blanket term for a number of armed and unarmed groups from across the political spectrum that resisted the Axis occupation of Greece in the period 1941–1944, during World War II. It is considered as one of the strongest resistance movements in Nazi-occupied Europe.
Mainland Greece was liberated in October 1944 with the German withdrawal in the face of the advancing Red Army, while German garrisons continued to hold out in the Aegean Islands until after the war's end. The country was devastated by war and occupation, and its economy and infrastructure lay in ruins. Greece suffered more than 400,000 casualties during the occupation, and the country's Jewish community was almost completely exterminated in the Holocaust. By 1946, however, a vicious civil war erupted between the British and American-sponsored conservative government and leftist guerrillas, which would last until 1949.
The Workers' and Peasants' Red Army, frequently shortened to Red Army was the army and the air force of the Russian Soviet Federative Socialist Republic, and, after 1922, the Union of Soviet Socialist Republics. The army was established immediately after the 1917 October Revolution. The Bolsheviks raised an army to oppose the military confederations of their adversaries during the Russian Civil War. Beginning in February 1946, the Red Army, along with the Soviet Navy, embodied the main component of the Soviet Armed Forces; taking the official name of "Soviet Army", until its dissolution in December 1991. The former official name Red Army continued to be used as a nickname by both sides throughout the Cold War.
The Aegean Islands are the group of islands in the Aegean Sea, with mainland Greece to the west and north and Turkey to the east; the island of Crete delimits the sea to the south, those of Rhodes, Karpathos and Kasos to the southeast. The ancient Greek name of the Aegean Sea, Archipelago was later applied to the islands it contains and is now used more generally, to refer to any island group.
The Holocaust, also known as the Shoah, was a genocide during World War II in which Nazi Germany, aided by local collaborators, systematically murdered some six million European Jews—around two-thirds of the Jewish population of Europe—between 1941 and 1945. Jews were targeted for extermination as part of a larger event during the Holocaust era, in which Germany and its collaborators persecuted and murdered other groups, including Slavs, the Roma, the "incurably sick", political and religious dissenters such as communists and Jehovah's Witnesses, and gay men. Taking into account all the victims of Nazi persecution, the death toll rises to 17 million.
The Italian invasion from Albania on October 28, 1940, after making small initial gains, was stopped by the determined defense of Greek forces in the battles at the Elaia–Kalamas line and the Pindus Mountains. The unwillingness of Bulgaria to attack Greece, as the Italians had hoped, allowed the Greek High Command to transfer most of the mobilizing divisions intended for the garrisoning of Macedonia to the front, where they were instrumental in the Greek counteroffensive, launched on November 14. Greek forces crossed the border into Albania and took city after city despite facing a harsh winter, having inadequate supplies and facing Italian air superiority. By mid-January, Greek forces had occupied a quarter of Albania, but the offensive had come to a standstill before it had reached its objective, the port of Vlorë.
The Battle of Elaia–Kalamas took place in Epirus from 2–8 November 1940. The battle was fought between the Greeks and the Italians during the initial stage of the Greco-Italian War. The Italian Army, deployed on the Greek-Albanian border, launched an offensive against Greece on 28 October 1940. The main thrust of the Italian invasion occurred in the Epirus sector, with a further flanking move through the Pindus mountains. In Epirus, the Greeks held the Elaia–Kalamas river line, and even though the Greek army was outnumbered, the local Greek forces under Major General Charalambos Katsimitros managed to stop the Italian advance. Along with the Italian failure in the Battle of Pindus, these Greek successes signified the complete failure of the Italian invasion, leading to the dismissal of the Italian commander in Albania, Sebastiano Visconti Prasca, on 9 November. In the next few weeks the Greek forces managed to initiate a counter-offensive, which forced the Italians to retreat deep into Albania.
The Battle of Pindus took place in the Pindus Mountains in Epirus and West Macedonia, Greece, from 28 October–13 November 1940. The battle was fought between the Greek and the Italian armies during the first stages of the Greco-Italian War. The Italian 3rd Alpine Division Julia invaded Greece from the Pindus sector. After its initial advance, the division was surrounded and virtually wiped out by the Greek army. In the aftermath, the Greeks were able to push back the Italians, advancing deep into Albanian territory.
Bulgaria, officially the Republic of Bulgaria, is a country in Southeast Europe. It is bordered by Romania to the north, Serbia and North Macedonia to the west, Greece and Turkey to the south, and the Black Sea to the east. The capital and largest city is Sofia; other major cities are Plovdiv, Varna and Burgas. With a territory of 110,994 square kilometres (42,855 sq mi), Bulgaria is Europe's 16th-largest country.
This situation prompted Germany to come to the rescue of its Axis partner. However, according to Stockings and Hancock, Hitler had never wished to interfere in the Balkans. They claim in their book, Swastika over the Acropolis (2013) that the invasion of Greece had more to do with "a reluctant response to British involvement" than aiding his Axis partner.In a final attempt to restore Italian prestige before the German intervention, a counterattack was launched on March 9, 1941 against the key sector of Klissura, under Mussolini's personal supervision. Despite massive artillery bombardments and the employment of several divisions on a narrow front, the attack failed to make any headway and was called off after almost two weeks.
But by April 13, the Italian front in Albania finally began to move, prompted by the general Italo-German joint attack. The Greeks put up a strong defense, fighting vigorously. However, a few days later, they were forced to retreat losing much of their hard won Albanian territory. Italian Bersaglieri units appeared and entered the plain of Korce, but even though minefields and road-blocks tried to delay their passage into Greek territory, they simply dismounted from their lorries and continued advancing by bicycle. The Greek Army of the Epirus however, was exhausted, while "the Italian advance amounted merely to keeping up with a defeated and retreating enemy."
|Italian invasion and initial Greek counter-offensive|
28 October – 18 November 1940
|Greek counter-offensive and stalemate|
14 November 1940 – 23 April 1941
The long-anticipated German attack (Unternehmen Marita) began on April 6, 1941, against both Greece and Yugoslavia. The resulting "Battle of Greece" ended with the fall of Kalamata in the Peloponnese on April 30, the evacuation of the Commonwealth Expeditionary Force and the complete occupation of the Greek mainland by the Axis.
The initial attack came against the Greek positions of the "Metaxas Line" (19 forts in Eastern Macedonia between Mt. Beles and River Nestos and 2 more in Western Thrace). It was launched from Bulgarian territory and supported by artillery and bomber aircraft. The resistance of the forts under general Konstantinos Bakopoulos was both courageous and determined, but eventually futile. The rapid collapse of Yugoslavia had allowed the 2nd Panzer Division (which had started from the Strumica Valley in Bulgaria, advanced through Yugoslav territory and turned south along the Vardar/Axios River valley) to bypass the defenses and capture the vital port city of Thessaloniki on April 9. As a result, the Greek forces manning the forts (the Army Section of Eastern Macedonia, TSAM) were cut off and given permission to surrender by the Greek High Command. The surrender was completed the next day, April 10, the same day that German forces crossed the Yugoslav-Greek border near Florina in Western Macedonia, after having defeated any resistance in southern Yugoslavia. The Germans broke through the Commonwealth (2 div. & 1 arm. brig.) and Greek (2 div.) defensive positions in the Kleidi area on April 11/12, and moved on to the south and southwest.
While pursuing the British southwards, the southwest movement threatened the rear of the bulk of the Greek Army (14 divisions), which was facing the Italians at the Albanian front. The Army belatedly began retreating southwards, first its northeast flank on April 12, and finally the southwest flank on April 17. The German thrust towards Kastoria on April 15 however made the situation critical, threatening to cut the Greek forces' retreat. The generals at the front began exploring the possibilities for capitulation (to the Germans only), despite the High Command's insistence on continuing the fight to cover the British retreat.
In the event, several generals under the leadership of Lt.Gen. Georgios Tsolakoglou mutinied on April 20, and taking matters in their own hands, signed a protocol of surrender with the commander of the Leibstandarte SS Adolf Hitler (LSSAH) near Metsovo the same day. It was followed by a second in Ioannina the next day (with Italian representation this time) and a final one in Thessaloniki between the three combatants on the 23rd. The very same day in Athens, Lt. General A. Papagos resigned his office as Supreme Commander whereas the King and his government embarked for Crete. About the same time the Commonwealth forces made a last stand at Thermopylae before their final retreat to the ports of Peloponnese for evacuation to Crete or Egypt. German troops seized the Corinth Canal bridges, entered Athens on April 27, and completed their occupation of the mainland and most islands by the end of the month, along with the Italians and Bulgarians.
The only Greek territory remaining free by May 1941 was the large and strategically important island of Crete, which was held by a large but weak Allied garrison consisting primarily of the combat-damaged units evacuated from the mainland without their heavy equipment, especially transport. To conquer it, the German High Command prepared "Unternehmen Merkur", the first mass-scale airborne operation in history.
The attack was launched on May 20, 1941. The Germans attacked the three main airfields of the island, at the northern towns of Maleme, Rethimnon, and Heraklion, with paratroopers and gliders. The Germans met stubborn resistance from the British, Australian, New Zealand and the remaining Greek troops on the island, and from local civilians. At the end of the first day, none of the objectives had been reached.
During the next day however, partly through miscommunication and failure of the Allied commanders to grasp the situation, Maleme airfield in western Crete fell to the Germans. With Maleme airfield secured, the Germans flew in thousands of reinforcements and captured the rest of the western side of the island. This was followed by severe British naval losses due to intense German air attacks around the island. After seven days of fighting the Allied commanders realized that victory was no longer possible. By June 1, the evacuation of Crete by the Allies was complete and the island was under German occupation. In light of the heavy casualties suffered by the elite 7th Flieger Division, Adolf Hitler forbade further large-scale airborne operations. General Kurt Student would dub Crete "the graveyard of the German paratroopers" and a "disastrous victory."
Immediately after the fall of Crete, Gen. Student ordered a wave of reprisals against the local population (Kondomari, Alikianos, Kandanos, etc.). The reprisals were carried out rapidly, omitting formalities and by the same units who had been confronted by the locals. Very soon, the Cretans formed resistance groups and in cooperation with British SOE agents began to harass the German forces with considerable success till the end of the war. As a result, mass reprisals against civilians continued throughout the occupation (Heraklion, Viannos, Kali Sykia, Kallikratis, Damasta, Kedros, Anogeia, etc.).
The Greek government claimed in 2006 that the Greek Resistance killed 21,087 Axis soldiers (17,536 Germans, 2,739 Italians, 1,532 Bulgarians) and captured 6,463 (2,102 Germans, 2,109 Italians, 2,252 Bulgarians), for the death of 20,650 Greek partisans and an unknown number captured.According to the OKH Heeresarzt 10-Day Casualty Reports per Theater of War, 1944, the German field army had 8,152 dead, 22,794 wounded and 8,222 missing in the South- East (Greece and Yugoslavia) between 22.6.1941 and 31.12.1944. According to the OKW monthly casualty reports, German army losses in the same theater between June 1941 and December 1944 were 16,532 dead (1.6.1941 to 31.12.1944), 22,794 wounded and sick (22.6.1941 to 31.12.1944) and 13,838 missing (1.6.1941 to 31.12.1944). Most German casualties in the South-East occurred in Yugoslavia. The German War Graves Commission maintains two German cemeteries on Greek territory, one at Maleme on Crete containing 4,468 dead (mainly from the Battle of Crete), and another at Dionyssos-Rapendoza, containing about 10,000 dead transferred there from all over Greece except Crete.
The aformentioned Greek government report (p. 126) claims that the population losses of Greece in World War 2 were 1,106,922, thereof 300,000 due to birth deficit and 806,922 due to mortality. Deaths are broken down as follows: military deaths in 1940/41, 13,327; executed, 56,225; died as hostages in German concentration camps, 105,000; deaths from bombing, 7,000; national resistance fighters, 20,650; deaths in the Middle East, 1,100; deaths in the merchant navy, 3,500 (subtotal: 206,922); deaths from hunger and related diseases, 600,000. Included in the number of concentration camp victims are 69,151 Greek Jews deported between 15 March 1943 and 10 August 1944, of whom only 2,000 returned (p. 68). The number of 600,000 victims of the "great hunger" is mentioned in the entry dated 5 February 1942 of a "short diary of the resistance" (p. 118). An estimated 300,000 people died in the Great Famine (Greece) in 1941-1944.
Conquered Greece was divided into three zones of control by the occupying powers, Germany, Italy and Bulgaria.The Germans controlled Athens, Central Macedonia, Western Crete, Milos, Amorgos and the islands of the Northern Aegean. Bulgaria annexed Western Thrace and Eastern Macedonia, while Italy occupied approximately two thirds of the country. The Italians were thus responsible for the greater part of Greece, especially the countryside, where any armed Resistance might take place. Italian forces in Greece comprised 11 infantry divisions, grouped in the 11th Army under General Carlo Geloso, with a further division in the Italian colony of the Dodecanese Islands. The Italians adopted a rather relaxed attitude towards their security duties, but they were in part justified to do so. Until the summer of 1942, as the Resistance movement was in its infancy, they faced little real opposition and considered the situation to have been normalized. The Germans limited themselves during the first period of the Occupation to the strategically important areas, and their forces were limited. The German troops in southeastern Europe came under the 12th Army headed initially by Field Marshal Wilhelm List and later by General Alexander Löhr. In Greece, two separate commands were created: the Salonica-Aegean Military Command at Thessalonica and the Southern Greece Military Command at Athens, for the entire duration of the war under Luftwaffe General Hellmuth Felmy. Crete was organized as a fortress ("Festung Kreta") garrisoned by the Fortress Division "Kreta", and after August garrisoned by the crack 22nd Air Landing Division. The Bulgarians occupied their own zone with an Army Corps and, faced with active resistance from the local population, engaged from the outset in a policy of Bulgarization of the area.
After mid-1942, with the growth of armed Resistance, and the spectacular destruction of the Gorgopotamos bridge (Operation "Harling") by a force of Greek guerrillas and British saboteurs on 25 November, the Italian authorities tried vainly to contain the surge in acts of resistance directed against their forces. The guerrillas were largely successful against the Italians, allowing for the creation of "liberated" areas in the mountainous interior, including sizeable towns, by mid-1943. At that time, however, German troops began being moved into Greece. Elite formations such as the 1st Panzer Division and the 1st Mountain Division were brought into the country, both in anticipation of a possible Allied landing in Greece (a concept deliberately promoted by the Allies themselves as a diversion from the landings at Sicily) and as a guarantee against a possible Italian capitulation.
These forces, especially the experienced mountain troops, engaged in large-scale counter-guerrilla operations in the area of Epirus. Their operations were successful in that they reduced the threat of guerrilla attacks on the occupation forces, but their often brutal conduct and mass reprisals policy resulted in massacres of civilians such as that of Kommeno on August 16, the Massacre of Distomo, or the "Massacre of Kalavryta" in December. In anticipation of the Italian collapse, the German command structure throughout the Balkans was reorganized: Army Group E under Löhr took over in Greece, overseeing both German forces and the Italian 11th Army.
The Italian capitulation in September caused most Italian units to surrender to the Germans, although others, such as the Pinerolo division and the Lancieri di AostaCavalry Regiment, went over to the guerrillas, or chose to resist the German takeover. This resulted in brief but violent clashes between Germans and Italians, accompanied by atrocities against Italian prisoners of war, such as the massacre of the Acqui Division on Cephallonia, dramatized by the film Captain Corelli's Mandolin . In addition, British and Greek forces tried to occupy the Italian-held Dodecanese, but they and their Italian allies were defeated in a short campaign (see Dodecanese Campaign).
Throughout late 1943 and the first half of 1944, the Germans, in cooperation with the Bulgarians and aided by Greek collaborators (see below) launched clearing operations against the Greek resistance, primarily against the communist-controlled "ELAS", while coming into an unofficial truce with the rightist EDES. At the same time, raids by British and Greek special forces were increasing in frequency in the Aegean islands. Finally, with the advance of the Red Army and the desertion of Romania and Bulgaria, the Germans were forced to evacuate mainland Greece in October 1944, although isolated garrisons remained in Crete, the Dodecanese and various other Aegean islands until the end of the war in May 1945.
As in some occupied European countries, a Greek puppet government was formed from the outset by the Occupation authorities, initially headed by General Georgios Tsolakoglou and later by Konstantinos Logothetopoulos. The forces this government had at its disposal were primarily these of the city police and the rural gendarmerie, which were relied upon to maintain and enforce order. However, the government was never able to extend its authority to all of the country, as on the one side it was never given free rein nor entirely trusted by its Axis overseers, nor was it popular among the people. As anti-Axis sentiment grew in 1942, its organs found themselves attacked by guerrillas and socially isolated. Except for isolated cases, such as the group of Colonel Georgios Poulos, only in 1943, with the appointment of the experienced politician Ioannis Rallis as Prime Minister, did the Germans allow any substantial Greek armed force to be recruited by the Athens government. These were the infamous "Security Battalions" (Tagmata Asfaleias), whose motivation, as in many other cases in occupied Europe, was primarily political: they fought exclusively against the communist-dominated EAM-ELAS resistance movement, which controlled most of the country. Their harsh and indiscriminate repressive activities against the population at large and their association with the Germans led to their being widely reviled, and in colloquial Greek they were known as Germanotsoliades (Greek : Γερμανοτσολιάδες, literally meaning "German Tsolias").
After the fall of Greece to the Axis, elements of the Greek armed forces managed to escape to the British-controlled Middle East. There they were placed under the Greek government in exile, and continued the fight alongside the Allies. The Greek Armed Forces in the Middle East fought on the North African Campaign, the Italian Campaign, the Dodecanese Campaign and commando raids against German positions in Greece, and participated in convoy duties in the Mediterranean, the Indian Ocean, and the Atlantic Ocean. As in Greece, these forces too were plagued by political strife, culminating in the pro-EAM April 1944 mutiny. After its suppression, the armed forces were restructured along firmly royalist and conservative officer cadres. Upon the withdrawal of German forces from the Greek mainland in October 1944, they returned to Greece and formed the nucleus of the new Greek armed forces that fought against EAM in the Dekemvriana, and against the Communists during the Greek Civil War.
After the war, Greece was in political and economical crisis due to the German occupation and the highly polarized struggle between leftists and rightists which targeted the power vacuum and led to the Greek Civil War, one of the first conflicts of the Cold War.
Officially, Greece claimed the lands of Northern Epirus (from Albania), Western Thrace (from the defeated Bulgaria) and the Dodecanese from Italy, but gained only the Dodecanese, as the new communist-controlled governments of Albania and Bulgaria had Soviet support.
After the war, the official Greek state tried and executed for war crimes among others Andon Kalchev, Bruno Bräuer and Friedrich-Wilhelm Müller.
The Axis occupation of Greece, specifically the Greek islands, figures in several English-language books and films based on real special forces raids such as Ill Met by Moonlight , The Cretan Runner , fictional ones like The Guns of Navarone , Escape to Athena , The Magus , They Who Dare , and Captain Corelli's Mandolin (a fictional occupation narrative). Notable Greek movies referring to the period, the war and the occupation, are Ochi, What did you do in the war, Thanasi? and Ipolochagos Natassa . The Greek defense was the subject of Swedish power metal band Sabaton's title track for their album Coat of Arms.
The Battle of Crete was fought during the Second World War on the Greek island of Crete. It began on the morning of 20 May 1941, when Nazi Germany began an airborne invasion of Crete. Greek and other Allied forces, along with Cretan civilians, defended the island. After one day of fighting, the Germans had suffered heavy casualties and the Allied troops were confident that they would defeat the invasion. The next day, through communication failures, Allied tactical hesitation and German offensive operations, Maleme Airfield in western Crete fell, enabling the Germans to land reinforcements and overwhelm the defensive positions on the north of the island. Allied forces withdrew to the south coast. More than half were evacuated by the British Royal Navy and the remainder surrendered or joined the Cretan resistance. The defence of Crete evolved into a costly naval engagement; by the end of the campaign the Royal Navy's eastern Mediterranean strength had been reduced to only two battleships and three cruisers.
In Albania, World War II began with its invasion by Italy in April 1939. Fascist Italy set up Albania as its protectorate or puppet state. The resistance was largely carried out by Communist groups against the Italian and then German occupation in Albania. At first independent, the Communist groups united in the beginning of 1942, which ultimately led to the successful liberation of the country in 1944.
The Balkans Campaign of World War II began with the Italian invasion of Greece on 28 October 1940. In the early months of 1941, Italy's offensive had stalled and a Greek counter-offensive pushed into Albania. Germany sought to aid Italy by deploying troops to Romania and Bulgaria and attacking Greece from the east. Meanwhile, the British landed troops and aircraft to shore up Greek defences. A coup d'état in Yugoslavia on 27 March caused Adolf Hitler to order the conquest of that country.
The Battle of Greece is the common name for the invasion of Allied Greece by Fascist Italy and Nazi Germany in April 1941 during World War II. The Italian invasion in October 1940, which is usually known as the Greco-Italian War, was followed by the German invasion in April 1941. German landings on the island of Crete came after Allied forces had been defeated in mainland Greece. These battles were part of the greater Balkan Campaign of Germany.
The Mediterranean and Middle East Theatre was a major theatre of operations during the Second World War. The vast size of the Mediterranean and Middle East theatre saw interconnected naval, land, and air campaigns fought for control of the Mediterranean, North Africa, the Horn of Africa, the Middle East and Southern Europe. The fighting in this theatre lasted from 10 June 1940, when Italy entered the war on the side of Nazi Germany, until 2 May 1945 when all Axis forces in Italy surrendered. However, fighting would continue in Greece – where British troops had been dispatched to aid the Greek government – during the early stages of the Greek Civil War.
The Greek People's Liberation Army, also often mistakenly called the National People's Liberation Army, was the military arm of the left-wing National Liberation Front (EAM) during the period of the Greek Resistance until February 1945, when, following the Dekemvriana clashes and the Varkiza Agreement, it was disarmed and disbanded.
The National Republican Greek League was one of the major resistance groups formed during the Axis occupation of Greece during World War II.
Resistance movements during World War II occurred in every occupied country by a variety of means, ranging from non-cooperation to propaganda to hiding crashed pilots and even to outright warfare and the recapturing of towns. In many countries, resistance movements were sometimes also referred to as The Underground.
The military history of Bulgaria during World War II encompasses an initial period of neutrality until 1 March 1941, a period of alliance with the Axis Powers until 9 September 1944 and a period of alignment with the Allies in the final year of the war. Bulgaria functioned as an authoritarian state during most of World War II. Tsar Boris III ruled with a prime minister and a parliament.
The occupation of Greece by the Axis Powers began in April 1941 after Nazi Germany invaded Greece to assist its ally, Fascist Italy, which had been at war with Allied Greece since October 1940. Following the conquest of Crete, all of Greece was occupied by June 1941. The occupation in the mainland lasted until Germany and its ally Bulgaria were forced to withdraw under Allied pressure in early October 1944. However, German garrisons remained in control of Crete and some other Aegean islands until after the end of World War II in Europe, surrendering these islands in May and June 1945.
The Dodecanese campaign of World War II was an attempt by Allied forces to capture the Italian-held Dodecanese islands in the Aegean Sea following the surrender of Italy in September 1943, and use them as bases against the German-controlled Balkans. Operating without air cover, the Allied effort failed, with the whole of the Dodecanese falling to the Germans within two months, and the Allies suffering heavy losses in men and ships. The Dodecanese campaign, lasting from 8 September to 22 November 1943, resulted in one of the last big German victories in the war.
The Bulgarian Resistance was part of the anti-Axis resistance during World War II. It consisted of armed and unarmed actions of resistance groups against the Wehrmacht forces in Bulgaria and the Kingdom of Bulgaria authorities. It was mainly communist and pro-Soviet Union. Participants in the armed resistance were called partizanin and yatak.
Konstantin "Kosta" Milovanović Pećanac was a Serbian Chetnik commander (vojvoda) during the Balkan Wars, World War I and World War II. Pećanac fought on the Serbian side in both Balkan Wars and World War I, joining the forces of Kosta Vojinović during the Toplica uprising of 1917. Between the wars he was an important leader of Chetnik veteran associations, and was known for his strong hostility to the Yugoslav Communist Party, which made him popular in conservative circles. As president of the Chetnik Association during the 1930s, he transformed it into an aggressively partisan Serb political organisation with over half a million members. During World War II, Pećanac collaborated with both the German military administration and their puppet government in the German occupied territory of Serbia.
The Kosovo Operation was a series of military operations leading up to one final push during World War II, launched by the Bulgarian army with the assistance of Yugoslav and Albanian Partisans to expel German forces from Kosovo and prevent the retreat of German forces from Greece. German Army Group E was withdrawing through it from Greece towards Bosnia, since the escape route through Niš and Belgrade had been closed by the Yugoslav Partisan, Bulgarian and Soviet forces.
During the Axis occupation of Greece between 1941 and 1944, large parts of the Albanian minority in the Thesprotia prefecture in Epirus, northwestern Greece, known as Chams collaborated with the occupation forces. Fascist Italian as well as Nazi German propaganda promised that the region would be awarded to Albania after the end of the war. As a result of this pro-Albanian approach, many Muslim Chams actively supported the Axis operations and committed a number of crimes against the local population both in Greece and Albania. Apart from the formation of a local administration and armed security battalions, a paramilitary organization named Këshilla and a resistance paramilitary group called Balli Kombetar Cam were operating in the region, manned by local Muslim Chams. The results were devastating: many Greek as well as Albanian citizens lost their lives and a great number of villages was burned and destroyed. With the retreat of the Axis forces from Greece in 1944, most of the Cham population fled to Albania and revenge attacks against the remaining Chams were carried out by Greek guerrillas and villagers. When the war ended, special courts on collaboration sentenced 2,106 Chams to death in absentia. However, the war crimes remained unpunished since the criminals had already fled abroad. According to German historian Norbert Frei, the Muslim Cham minority is regarded as the "fourth occupation force" in Greece due to the collaborationist and criminal activities that large parts of the minority committed. According to the Lieutenant Colonel Palmer of the British Military Mission in Albania 2,000-3,000 collaborated in an organized manner, while a report of Pan-Epirotic EAM-Commission names 3,200 Cham collaborators that belonged to the Dino clan.
The Panhellenic Liberation Organization, was a Greek undercover resistance organization against the Axis occupation of Greece. It was founded in 1941 by a group of Greek army officers, under the name Defenders of Northern Greece, employing methods of non violent resistance. In 1943, YVE was renamed as the Panhellenic Liberation Organization (PAO), shifting its focus towards armed struggle. In the August of the same year it came into conflict with Greek People's Liberation Army (ELAS), a communist-led resistance organization. PAO was defeated in the ensuing civil war and its remnants turned towards collaboration with the Germans.