How did the Japanese expand its empire in the pacific?

Japan expanded its empire in the Pacific primarily through military aggression and strategic expansionist policies during the early 20th century. Following the victory in the First Sino-Japanese War (1894-1895), Japan gained control of Taiwan and later annexed Korea. The Empire further expanded its reach during World War II, launching surprise attacks on territories such as Pearl Harbor and quickly occupying large areas of Southeast Asia and the Pacific Islands. This aggressive expansion was driven by a desire for resources, national pride, and the belief in Japan's superiority.