Prior to its imperialist policy during WW II, Japan had a long history of isolationism.
Japan, Italy, and Germany were implementing aggressive expansionist policies during the 1930s and World War II, often rooted in militarism and nationalism. This policy aimed to acquire new territories for resources, land, and strategic advantage, justified by ideologies such as fascism in Italy and Germany, and imperialism in Japan. Their invasions were marked by a belief in racial superiority and a desire to establish empires, leading to widespread conflict and atrocities across Asia and Europe.
newdiv
When Japan became aggressive in the years leading up to World War II, America followed a policy of isolationism at first. However, after Japan's attack on Pearl Harbor in 1941, the US entered the war and adopted a policy of total war against Japan, seeking to defeat them completely.
Because of the nuclear attack on Hiroshima and Nagasaki. They were like silent bombs so that they can tell the whole world that they have the potential to stand on ground with firm basis of industry, intellect and power.
neocolonialism
Imperialism. Japan is a volcanized island that is made up of many mountains and few resources. They did not have enough land or resources to support their population. This is the main reason that they began to spread their influence beyond their borders, or practice a policy of imperialism.
When Japan became aggressive in the 1930s and 1940s, the United States pursued a policy of economic sanctions and diplomatic pressure to try to curb Japanese expansionism. However, the attack on Pearl Harbor in 1941 led to the United States entering World War II against Japan.
Western imperialism put Japan in a position where they were excluded from attaining the raw materials they required for economic progress.
America declaring war on Japan and Nazi Germany instead of ignoring European and Asian imperialism.
Japan recognized its similar goals and ideology with respect to nationalism and Imperialism. In addition, the Nazis had specific technological advances that the Japanese wanted to incorporate into their war machine. However, the primary reason was to establish an alliance that would stabilize the war effort for Japan if the Allies took an interest in Japan's plans for the Pacific.
japan