The invasion of Denmark in early 1940 increased the power and importance of the governors greatly, but by 1941 the island had become an American protectorate. Following the war, the former corporate policy was discontinued: the North and South Greenland colonies were united and the RGTD's monopoly officially ended. In 1953, Greenland's colonial status was ended and it was made an integral part of the Kingdom of Denmark with representation in the Folketing. In 1979, the Folketing granted the island home rule and, in 2009, all matters other than defense and foreign policy were transferred to the regional parliament.