By far the largest armed groups formed were the Partisans, officially the National Liberation Army. First resistance group in Europe during WW2. War continued in Albania until November 29, 1944. 28,000 Partisan troops were killed during the war. Axis casualties to the Partisans numbered 60,000 (including Italian prisoners which surrendered in large numbers).
An Italian and a German unit were created within the command of the Albanian National Resistance Front, comprising Italian and German soldiers who deserted to the Albanian side. This included the Antoni Gramsci Batallion (named after an Italian communist of Albanian origins), and a unit of about 70 German deserters.
Following November 29 1944, Albanian Partisan units, at the request of Tito, advanced into Kosovo and later into Bosnia. 60,000 Albanian Partisans advanced into Kosovo, to join another 40,000 Albanian Partisan soldiers operating under Tito's command in Kosovo and Macedonia (under his command in name only)