Answer:
Between the 1910s and 1930s, Japan was really pushing for expansion through territorial invasions. A big move was when they officially took over Korea in 1910, putting it under pretty harsh colonial rule that stuck around until the end of World War II in 1945. Then in 1931, Japan rolled into Manchuria in northeastern China, basically taking over and creating this puppet state called Manchukuo. Things got even more heated in 1937 when Japan invaded China, kicking off the Second Sino-Japanese War. They ended up occupying big chunks of China during that mess. All these moves were part of Japan's bigger plan for power in East Asia from the early to mid-1900s, and it definitely played a role in them jumping into World War II.
Step-by-step explanation: