The history of Bulgaria during World War II encompasses an initial period of neutrality until 1 March 1941, a period of alliance with the Axis powers until 8 September 1944, and a period of alignment
German Wehrmacht officers in Bulgaria in 1939
Bulgarians entering Southern Dobruja in Romania per the Treaty of Craiova (1940)
Bulgarian invasion of southern Yugoslavia (Vardar Macedonia, April 1941)
Bulgarian invasion of eastern Serbia (Western Outlands, April 1941)
Bulgarian irredentism is a term to identify the territory associated with a historical national state and a modern Bulgarian irredentist nationalist movement in the 19th and 20th centuries, which woul
Bulgarian Exarchate (1870–1913).
Treaty of San Stefano (1878) showing the boundaries of Bulgaria.