During 1931-1945(world war 2) japan became to build up and later went to war with the united states (August 1941 The Battle of Pearl Harbor)
hope this help
The significant consequences were that: 1. China became a Republic instead of a monarchy; 2. Foreign influences were brought to a minimum as the country almost closed its borders; 3. Increased provincial governance led to decentralization; 4. Social reforms and changes were conducted in a not as successful manner. <span />
All of these presidents were in office during a war.
2/3 I'm pretty sure but i could be wrong
