This event would be Germany's sinking of an American vessel despite both nations being at a neutral diplomatic standpoint at the time. When the Germans sank the American vessel, without any actual reason to do so, this drastically coldened the relationship between the US and Germany.
Many say that Truman was justified in dropping the first bomb and it kept a land invasion of Japan from occurring but that he didn't give the Japanese enough time to surrender and that the second bomb was ethically problematic.
It would be "Communist demonstrations" that did not <span>help cause World War I, since communism really did not start to play a prominent role in Europe until later in the century. </span>
Consumers benefit from perfect competition because the produce they are buying slowly drops in price. When two companies fight and try to get the most sales they tend to lower their prices so that more people will go to them instead of the competition.