The Alaska boundary dispute was a territorial dispute between the United States and the United Kingdom of Great Britain and Ireland, which then controlled Canada's foreign relations. It was resolved by arbitration in 1903. The dispute had existed between the Russian Empire and Britain since 1821, and was inherited by the United States as a consequence of the Alaska Purchase in 1867. The final resolution favored the American position, as Canada did not get an all-Canadian outlet from the Yukon gold fields to the sea. The disappointment and anger in Canada was directed less at the United States, and more at the British government for betraying Canadian interests in favor of healthier Anglo-American relations.

Southeast Alaska, often abbreviated to southeast or southeastern, and sometimes called the Alaska(n) panhandle, is the southeastern portion of the U.S. state of Alaska, bordered to the east and north by the northern half of the Canadian province of British Columbia. The majority of southeast Alaska is situated in Tlingit Aaní, much of which is part of the Tongass National Forest, the United States' largest national forest. In many places, the international border runs along the crest of the Boundary Ranges of the Coast Mountains. The region is noted for its scenery and mild, rainy climate.