1st Army (Yugoslav Partisans)

The 1st Army of the Yugoslav Partisans (Prva Armija) was one of the main operational formations of the People's Liberation Army of Yugoslavia (NOVJ) during World War II. Formed on January 1, 1945, from the I Corps (comprising the 1st, 5th, and 6th Divisions) and the Belgrade Operational Group, it participated in the final offensives to liberate Yugoslavia from Axis occupation.

The Army's initial command structure included General Koča Popović as commander and General Peko Dapčević as deputy commander. The 1st Army played a crucial role in the liberation of Belgrade in late 1944, and subsequently continued operations in Srem and Slavonia.

Throughout 1945, the 1st Army was heavily engaged in fighting against the remaining German forces and their collaborators, particularly in the Srem Front, a fiercely contested area. It participated in the final battles to liberate Zagreb and other parts of Croatia, contributing significantly to the overall Allied victory in Yugoslavia.

Following the end of World War II, the 1st Army was reorganized and integrated into the Yugoslav People's Army (JNA). The legacy of the 1st Army, along with other Partisan units, became a significant part of Yugoslav national identity and military history.