The Hellenic Army, formed in 1828, is the land force of Greece. The term Hellenic is the endogenous synonym for Greek. The Hellenic Army is the largest of the three branches of the Hellenic Armed Forces, also constituted by the Hellenic Air Force (HAF) and the Hellenic Navy (HN). The army is commanded by the chief of the Hellenic Army General Staff (HAGS), which in turn is under the command of Hellenic National Defence General Staff (HNDGS).
The Provisional Government of National Defence, also known as the State of Thessaloniki, was a parallel administration, set up in the city of Thessaloniki by former Prime Minister Eleftherios Venizelos and his supporters during World War I, in opposition and rivalry to the official royal government in Athens.
The Macedonian front, also known as the Salonica front, was a military theatre of World War I formed as a result of an attempt by the Allied Powers to aid Serbia, in the autumn of 1915, against the combined attack of Germany, Austria-Hungary and Bulgaria. The expedition came too late and with insufficient force to prevent the fall of Serbia and was complicated by the internal political crisis in Greece. Eventually, a stable front was established, running from the Albanian Adriatic coast to the Struma River, pitting a multinational Allied force against the Bulgarian army, which was at various times bolstered with smaller units from the other Central Powers. The Macedonian front remained stable, despite local actions, until the Allied offensive in September 1918 resulted in Bulgaria capitulating and the liberation of Serbia.
The IV Army Corps "Thrace" is an army corps of the Hellenic Army. Established before the First World War, it served in all conflicts Greece participated in until the German invasion of Greece in 1941. Re-established in 1976, it has been guarding the Greco-Turkish land border along the Evros River, and is the most powerful formation in the Hellenic Army.
Anastasios Charalambis was a Greek Lieutenant General and interim Prime Minister of Greece for one day in 1922.
At the outbreak of World War I in August 1914, the Kingdom of Greece remained neutral. Nonetheless, in October 1914, Greek forces once more occupied Northern Epirus, from where they had retreated after the end of the Balkan Wars. The disagreement between King Constantine, who favoured neutrality, and the pro-Allied Prime Minister Eleftherios Venizelos led to the National Schism, the division of the state between two rival governments. Finally, Greece united and joined the Allies in the summer of 1917.
Emmanouil Zymvrakakis was a Hellenic Army officer who rose to the rank of lieutenant general, and was distinguished in World War I.
The 5th Airmobile Brigade "5th Cretan Division", formerly the 5th Infantry Division and commonly referred to simply as the Cretan Division, is an air assault brigade of the Hellenic Army responsible for the defense of the southern Aegean sea.
Konstantinos Mazarakis-Ainian was a Hellenic Army officer who rose to the rank of Lieutenant General.
Konstantinos Th. Bakopoulos (1889–1950) was a Greek general in the Hellenic Army who took part in the Balkan Wars (1912–1913), played a crucial conciliatory role in Greek military politics during the 1930s and distinguished himself in the fight against the Nazis during World War II. In 1943 he was imprisoned in German concentration camps until the end of the war in 1945.
Dimitrios Spanidis
Dimitrios Katheniotis was a Hellenic Army officer who rose to the rank of Lieutenant General and served as chief of the Hellenic Army General Staff in 1933–35.
The Struma operation was the occupation of a part of northeastern mainland Greece by the Bulgarian army during the First World War between 17–23 August 1916. It was named after the Struma (Strymonas) river.
Charalambos Tseroulis was a distinguished infantry officer of the Hellenic Army who rose to the rank of Lieutenant General.
Efthymios Tsimikalis was a Hellenic Army officer who rose to the rank of lieutenant general. He was particularly notable for this role in World War I and in the politics of the interwar period in Greece.
The Army of National Defence was the military force of the Provisional Government of National Defence, a pro-Allied government led by Eleftherios Venizelos in Thessaloniki in 1916–17, against the royal government of King Constantine I in Athens, during the so-called National Schism. By the spring of 1917, it comprised three infantry divisions that formed the National Defence Army Corps and fought in the Macedonian front. Following the ousting of King Constantine and the reunification of Greece under the leadership of Venizelos in June 1917, the Corps continued as part of the reconstituted Hellenic Army until 1920, when it became the Army of Thrace.
The National Defence coup d'état was a military uprising in Thessaloniki on 17 August 1916, by Greek Army officers opposed to the neutrality followed by the royal government in Athens during World War I, and sympathetic to former Prime Minister Eleftherios Venizelos and the Entente Powers. With the support of Entente forces present in the area as part of the Salonica front, the coup established control of Thessaloniki and much of the wider region. Soon afterwards, Venizelos and his leading followers arrived in the city to establish a Provisional Government of National Defence, which entered World War I on the side of the Entente. These events marked the culmination and entrenchment of the "National Schism" in Greek politics.
Georgios Leonardopoulos was a Greek army major general who fought in the Greco-Turkish War of 1897, the Balkan Wars, World War I, and the Greco-Turkish War of 1919–1922, and led a failed coup attempt in 1923.
Between 1916 and 1919, 464 officers and 6373 soldiers of the Greek Army's IV Army Corps were interned in the German city of Görlitz, officially as "guests" of the German Empire, for the duration of World War I. During August 1916, Bulgarian and German forces invaded the Greek territory of eastern Macedonia, ostensibly in order to confront the Allied troops who had established themselves in and around the northern Greek city of Thessaloniki. The Greek government had given its local forces strict orders not to oppose neither the Allies nor the Central Powers, in an attempt to preserve the country's neutrality during the conflict. However, contrary to German assurances that they would respect Greek sovereignty and civil authorities, the Bulgarians quickly made clear that they aimed to annex the territories they captured, and tried to isolate and capture the Greek troops of IV Corps piecemeal. To avoid Bulgarian captivity, the acting commander of the corps, Colonel Ioannis Hatzopoulos, asked the German authorities to accept moving his men to Germany for the duration of the war.
Petros Klados was a Greek Army officer who reached the rank of lieutenant general and served as Chief of the Hellenic Army General Staff.
Kingdom of Greece 
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