japan seized manchuria because japanese believed that japans empire should be equal to the size of the western powers empire
I believe it was because the government was afraid that they might be spies for Japan, so they thought it was safer to keep them in one place so it would be easier to keep an eye on them. It also stemmed from racism due to the attack on Pearl Harbor and the U.S. fighting against the Japanese in the Pacific.
Most likely the colonists' response to th Stamp Act seeing that they refused to buy many goods from Britain following the Stamp Act.
