Nuclear arms race was a key factor in extending the time period of the cold war. The seeds of the hostility between USSR in US began after the end of World War I with the rising of communism in USSR in Stalin rule made it worse.
Answer:
At the core of the samurai beliefs was their honor code known as bushido, but the bushido code was just the natural result of the three most important religions and philosophies the samurai followed – Shintoism, Confucianism, and Zen Buddhism.
If that's not the answer you were looking for let me know and I'll find a better one.
The reason the US got involved in the war was because the Japanese bombed Pearl Harbor which then lead the US to fight in the war against Japan,Germany and other countries
Voting rights, I would say.