Bulgarian resistance movement during World War II

The Bulgarian Resistance (Bulgarian: Партизанско движение в България, romanized: Partizansko dvizhenie v Balgariya, lit. 'Partisan movement in Bulgaria') was part of the anti-Axis resistance during World War II. It consisted of armed and unarmed actions of resistance groups against the Wehrmacht forces in Bulgaria and the Tsardom of Bulgaria authorities. It was mainly communist and pro-Soviet Union.

Source: Wikipedia — Bulgarian resistance movement during World War II (CC BY-SA 4.0)