The Judicial Branch can rule that the Legislative Branch’s laws are unconstitutional. They can also evaluate the Executive Branch and rule whether or not the actions of the Executive are constitutional.
Checks and balances refers to a system in U.S. government that three branches—legislative, executive and judicial—and includes various that can be checked by the powers given to the other two branches. Congress can effectively check the decisions of the Supreme Court
Because the Germans had killed off a lot of innocent Soviets which the Soviets wanted the Nazi people to pay for by executing or torturing the Nazis before execution. But the British and U.S. forces would not execute as many because the Germans did not execute them
