Canada's Defence Plan No. 2 envisaged a war in the Pacific between Japan and the United States, and laid plans to protect Canada in such a conflict. In 1941, Canada sent two battalions to Hong Kong to support the British. The Pacific coast was ill-prepared until the invasion of the Aleutian islands and the shelling of Estevan Point in British Columbia by the Japanese Navy. Fear of a Japanese invasion created a panic and 22,000 Japanese-Canadians were interned.