This shows Harry S. Truman (democratic) and Joseph Stalin (communist) discussing the policy of containment. The policy of containment was created to keep communism where it was and stop it from spreading.
The Space Race
OMG I'M ON THE MOON
After the League of Nations failed, the United Nations was formed after WWII. It was much better because they had a military and it is still around today.
East vs West Berlin
The Vietnam War was a conflict between communist Vietnam and the US. Vietnam fought with guerilla warfare in the jungle, so it was difficult to predict attacks.
The two main superpowers, US and USSR, were competing to have a better space program. After the USSR sent their satellite, Sputnik, into orbit, the US sent Neil Armstrong to the moon.
Living conditions were very different in East and West Berlin. The West (left) had limited goods but it was much worse in the East (right)
The Arms Race was when the USSR and the USA were building up their weapons and military to try and threaten the other side. There was no actual fighting involved.