Four of the nine justices must agree.
Rhineland is the name used for a loosely defined area of Western Germany along the rhine river. Hitler wanted it to test British and French allies. French Army, Navy, and airforce outnumbered the German Armed forces.
Thousands attend the Hiroshima Peace Memorial Ceremony annually. Other critics argued that American diplomats had ulterior motives. The Soviet Union had entered the war against Japan, and the atomic bomb could be read as a strong message for the Soviets to tread lightly.
It began to break down because it was only a temporary solution to the problem. The next time that slavery and new states came into question, the compromise became irrelevant because a new one had to be found to solve the issues with places like Texas and New Mexico, and California, and things like that.