The Battle of Kolubara, was fought between Austria-Hungary and Serbia in November and December 1914, during which campaign of World War I was fought from late July 1914, when Austria-Hungary invaded the Kingdom of Serbia at the outset of World War I, until the war's conclusion in November 1918?
Serbian Campaign of World War I The Serbian Campaign of World War I was fought from late July 1914, when Austria-Hungary invaded the Kingdom of Serbia at the outset of World War I, until the war's conclusion in November 1918. The front ranged from the Danube River to southern Macedonia and back north again, and it drew in forces from almost all the combatants of the war.
Battle of Slivnitsa Called the "Battle of the captains vs the generals" by historians,referring to the young Bulgarian army, whose highest rank went up to a captain, the Battle of Slivnitsa (Bulgarian: Битка при Сливница ,Serbian: Битка на Сливници ) was a decisive factor in the victory of the Bulgarian army over the Serbians on November 17–19, 1885 in the Serbo-Bulgarian War. It solidified the unification between the kingdom of Bulgaria and Eastern Rumelia.