10,397 men: 8,402 1,010 895 13 tanks 26 aircraft 523:245 killed250 wounded28 captured6 fighters lost Asia-Pacific Mediterranean and Middle East Other campaigns Coups The Swedish Intervention in the Winter War was a short-lived but successful attempt by the Swedish Volunteer Corps, along with other Nordic volunteers, to prevent a Soviet invasion of Finland during the Winter War.

The term "volunteers" have often been used to describe the Nordic military support for Finland in the Winter War, although involvement by the government of Sweden has been debated over time.

[6][7] Finland at the time was only officially allied with Estonia,[8] as Sweden had rejected participation in the anti-Soviet alliance.

Major General Kurt Martti Wallenius, the Finnish commander, ordered his men to retreat up the Kemijoki river where a defensive line could be easily maintained.

Although the Soviet casualties were larger than that of their adversaries, the Finnish colonel Voldemar Oinonen ordered a full retreat when he began to doubt the chances of defeating the enemy.