Hawaii's sugar cane plantations were a great industry that America wanted a piece of. First, they started by signing a treaty that took away all tax on trades between Hawaii and America. Obviously, that wasn't enough for America because soon after Hawaii was annexed by America.
Made a peace treaty among Israel and Egypt.
You are welcome and learn the alphabet first if you can't read
Because they were fighting on their own territory and defending their home, the vietcong had greater determination than the US who were not really sure what they were there for.