Events with tag - Underground State

September 27, 1939

Polish Underground State

The Polish Underground State was established on September 27, 1939, as a secret administrative and military structure in response to the German and Soviet occupation of Poland. It was a unique phenomenon in Europe, encompassing both civilian and military structures that operated in conspiracy throughout World War II.

November 13, 1939

Establishment of the Union of Armed Struggle

The Union of Armed Struggle (ZWZ) was established on November 13, 1939, by order of Gen. Władysław Sikorski as the main underground organization in occupied Poland. ZWZ was formed to replace the Service for Poland's Victory and operated until its transformation into the Home Army in 1942. This organization became the foundation of the Polish Underground State during World War II.