The KAR fought in several campaigns during World War II. It fought against the Italians in Italian East Africa during the East African Campaign, against the Vichy French in Madagascar during the Battle of Madagascar, and against the Japanese in Burma during the Burma Campaign. The Somaliland battalions were heavily involved in defending the colony against the Italian invasion of August 1940, but were forced to retreat and evacuate after defeat in the Battle of Tug Argan from 11–15 August.