Operation Tempest was a series of uprisings conducted during World War II against occupying German forces by the Polish Home Army, the dominant force in the Polish resistance.
The siege of Warsaw in 1939 was fought between the Polish Warsaw Army garrisoned and entrenched in Warsaw and the invading German Army.
The Battle of the Bzura was both the largest battle and Polish counter-attack of the German invasion of Poland and was fought from 9 to 19 September. The battle took place west of Warsaw, near the Bzura River. It began as a Polish counter-offensive, which gained initial success, but the Germans outflanked the Polish forces with a concentrated counter-attack. That weakened Polish forces and the Poznań and Pomorze Armies were destroyed. Western Poland was now under German occupation. The battle has been described as "the bloodiest and most bitter battle of the entire Polish campaign". Winston Churchill called the battle an "ever-glorious struggle".
The Battle of Lwów was a World War II battle for the control over the Polish city of Lwów between the Polish Army and the invading Wehrmacht and the Red Army. The city was seen as the key to the so-called Romanian Bridgehead and was defended at all cost.
The Battle of Mława, otherwise known as the Defence of the Mława position, took place to the north of the town of Mława in northern Poland between 1 and 3 September 1939. It was one of the opening battles of the Invasion of Poland and World War II in general. It was fought between the forces of the Polish Modlin Army under General Krukowicz-Przedrzymirski and the German 3rd Army under General Georg von Küchler.
The 28 Dywizja Piechoty was a Polish Army infantry division which saw action against the invading Germans during the Invasion of Poland of World War II. The division suffered heavy casualties in battles near Łódź and the remnants retreated to Warsaw, where they surrendered.
The Volhynian Cavalry Brigade was a Polish cavalry brigade, which saw action against the invading Germans during the Invasion of Poland, a part of World War II. Raised from recruits in the area of Wołyń, the division was posted to the Łódź Army. During several desperate counter-attacks, the brigade suffered heavy casualties near Łódź. It was commanded by Colonel Julian Filipowicz. Most notably, the unit took part in one of the first battles of the German invasion of Poland, the battle of Mokra.
The Battle of Radom, also known as the Battle of Iłża, was part of the Invasion of Poland during the Second World War. It lasted from 8 September 1939 to 9 September 1939. Polish troops of the Prusy Army, under General Stanisław Skwarczyński, defended the city of Iłża and the road from Sandomierz to Radom. The Poles were not ready to meet head on overwhelming German XV Army Corps, and were easily defeated after two days of fighting. Prusy Army, in the aftermath of the battle, ceased to exist. Some of the army's units joined other tactical groupings of the Polish armed forces.
The Battle of Wola Cyrusowa took place on 8 September 1939 near the village of Wola Cyrusowa near Stryków in Poland, during the September Campaign. It was fought between the forces of the Polish Piotrków Operational Group under Gen. Wiktor Thommée and the German 10th Infantry Division. In the effect of a successive delaying action, the Polish forces managed to regroup and withdraw eastwards while at the same time inflicting heavy losses on the opposing unit. However, their victory was only a temporary setback for the Nazi invasion of Poland.
Kraków Army was one of the Polish armies which took part in the Polish Defensive War of 1939. It was officially created on March 23, 1939 as the main pivot of Polish defence. It was commanded by Gen. Antoni Szylling. Originally, Kraków Army was to be made of seven infantry divisions, two cavalry brigades and one mountain brigade. On September 1, 1939, General Szylling had the force which consisted of five infantry divisions, two cavalry brigades and one brigade of mountain infantry. Altogether, the army was made of 59 battalions, 29 squadrons, 352 cannons, 90 tanks, two armoured trains and 44 planes. These forces were not enough to halt German advance, especially in the area north of Częstochowa, where Kraków Army connected with Łódź Army. Main thrust of Wehrmacht panzer units was directed there, and this area was defended only by the Polish 7th I.D., which was destroyed in the early days of September 1939, opening the way towards central Poland.
The 7th Infantry Division was the name of several units of the Polish Army.
Battle of Borowa Góra refers to the series of battles from 2 to 5 September 1939 that took place near the Góry Borowskie hills, south west from Piotrków Trybunalski and east of Bełchatów. The battle, fought between the Wehrmacht and the Polish Army in the vicinity of Łódź, was a direct consequence of the Battle of the Border, an early part of the German Invasion of Poland
The Battle of Kałuszyn, took place between 11 and 12 September 1939 around the town of Kałuszyn near Mińsk Mazowiecki in Poland. It was part of the invasion of Poland at the start of World War II between forces of the Polish Army and the invading German Army.
The 8th Infantry Division was a tactical unit of the Polish Army. It was active in the Polish-Bolshevik War, as well as during the Invasion of Poland in 1939. During World War II, the division was reformed twice as part of two distinct armed forces: once as part of the Home Army during the Warsaw Uprising and again as part of the Polish Army in the East.
Polish 2nd Legions Infantry Division was a tactical unit of the Polish Army between the World Wars. Formed on February 21, 1919, in the towns of Zegrze and Jablonna near Warsaw, and composed mostly of veterans of the Polish Legions in World War I, the unit saw extensive action during the Polish-Bolshevik War and the Invasion of Poland.
10th Infantry Division was a unit of the Polish Army during the interbellum period, which took part in the 1939 German Invasion of Poland. It was created in 1919 from the former Polish 4th Rifle Division. Stationed in Łódź and commanded in 1939 by General Franciszek Dindorf-Ankowicz, it was part of Łódź Army. Its task was to defend the fortified area along the upper Warta river, near the interwar border of Poland and Germany.
15th "Greater Poland" Infantry Division was a unit of the Polish Army in the interbellum period. Founded on February 17, 1920, and based on the 2nd Greater Poland Rifles Division, it actively participated in the Polish-Soviet War, including the Kiev offensive (1920), and the Battle of Warsaw. After Polish victory, the Division pushed the Red Army out of northern Mazovia. It then fought in the Battle of the Niemen River.
The 27 Infantry Division, was a unit of the Polish Army in the inter-war period. It was created on 18 October 1920, as a result of reorganization of the Army, from units of the 2nd I.D., 3rd I.D., and 13th I.D. Its headquarters were located in Kowel, with units stationed in other Volhynian towns, such as Lutsk, Sarny and Wlodzimierz Wolynski. Division's first commandant was General Gustaw Kuchinka.
5th Lwów Infantry Division was a unit of the Polish Army in the interbellum period, with headquarters stationed in Lwów. It was created on May 20, 1919, during the Polish–Ukrainian War in Eastern Galicia. Originally, it consisted of three infantry regiments, but later it was strengthened with additional two. During Polish September Campaign it was commanded by General Juliusz Zulauf. The Division consisted in September 1939 of these regiments:
The Battle of Piotrków Trybunalski was a battle in the German Invasion of Poland from 4 to 6 September 1939, which involved Polish and German tank formations.
Second Polish Republic 