Joseph Stalin is the answer
I can't help you with your second question but heres a site that I've found to help you with your 1st one. I hope this helps^-^
https://nationalinterest.org/feature/5-big-lessons-the-first-gulf-war-13536
Answer: D
Explanation: The United States, South Korea, the Philippines, Australia, Thailand and other anti-communist allies all helped South Vietnam during the Vietnam War. I would choose the U.S. for this question though.