In late 1941, Japan's Army-dominated government decided to seize by military force the strategic resources of South-East Asia and Indonesia since the Western powers would not give Japan these goods by trade. Planning for this action included surprise attacks on American and British forces in Hong Kong, the Philippines, Malaya, and the U.S. naval base and warships at Pearl Harbor. In response to these attacks, the U.K. and U.S. declared war on the Empire of Japan the next day. Nazi Germany declared war on the U.S. a few days later, along with Fascist Italy; the U.S. found itself fully involved in a second world war.