Battle of Kollaa

Battle of Kollaa
	Part of the Winter War
Date	December 7, 1939 – March 13, 1940
Location	Kollaa River, Finland62°1′40″N 32°15′20″E / 62.02778°N 32.25556°E
Result	Finnish victory
Belligerents
Finland	Soviet Union
Commanders and leaders
Woldemar Hägglund; Division:; Lauri Tiainen; (Until 31 January); Antero Svensson; (From 1 February)	Ivan Khabarov; (Until 13 December); Grigori Shtern; (From 13 December); 56th Division: (December); M.S. Yevstigneyev; Corps: (February–March); 1st: Dmitri Kozlov; 14th : V.G. Vorontsov
Units involved
12th Division	In December ; 56th Rifle Division ; In March ; 1st Rifle Corp ; 14th Rifle Corp ; (6 divisions)
Casualties and losses
1,500 dead or wounded (estimate)	8,000 dead or wounded
	Location within Karelia Battle of Kollaa (Finland)

The Battle of Kollaa was fought from December 7, 1939, to March 13, 1940, in Ladoga Karelia, Finland, as a part of the Soviet-Finnish Winter War.