What were the only two times japan was ever successfully invaded by a foreign power? okinawa guam iwo jima saipan

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.

a widespread disease that killed many people

the split of the christian church

invasion from arab muslims

i would say the executive branch is because the executive branch is in charge of enforcing the laws and judicial branch is in charge of enforcing but the executive branch is most responsible for it all so i would have to say the executive branch.