1. by not giving power to the workers
2. by curbing civil rights
Answer: The Battle of Midway, June 4-7, 1942.
Further detail:
The Battle of Midway was a "midway" point in the battle against Japan in the Pacific. It allowed the United States, fighting for the Allies, to go from a defensive position to being on offense. The battle was one fought mainly with aircraft, and the US was able to knock four of Japan's aircraft carriers out of commission while only losing one of their own aircraft carriers. Japan's advance across the Pacific halted at Midway, and US forces began its own offensive to retake islands and ultimately pursue the war all the way to Japan itself.
Basically, the fifth amendment gives you rights in courts to protect yourself against a government that might illegally prosecute you. It prevents the government from making you testify against yourself if you don't want to vote and it provides you with a jury that decides your faith to prevent there being a judge that works for the government. One might be if you're a dissident so the jury protects you. Another is if your property gets taken away then they have to give you payment to make up for it. Another modern thing could be if they wanted to put you on trial for the same offense again and the fifth would protect you from it.