it was Berlin
The US and Soviets had always been adversarys. The Soviets had been communists since 1917. Nuclear weapons caused the change in 1945, when the first one went off. More tension was created in 1949 when the Soviets tested their first weapon.
The Soviets never walked on the Moon, only Americans did.
There were no US soviets, the US have senates.
In 1960 the "space race" began between the US and Soviets. Both worked to get to the moon first and in 1969 the US landed on the moon. The Soviets never have landed. The space race was just another outcome of the Cold War. The ability to launch a rocket has military advantages whether it has a payload for space or for military uses.
The dividing line between the Soviets and US/allies.
It made US create NASA to compete with the Soviets.
the soviets shot down an American spy plane
During World War II, they did. During the Cold War, the Soviets were one of the Four Powers responsible for the military administration of Berlin. (The US, British and French Armies were the other three.) The difference between the Soviets and the other three: the US, British and French treated their "military administration" duties as ceremonial, but the Soviets really had the Army running the city.
It sped things up in Europe; it was really a race between the Soviets (Russians) and the Western Allies, on who could beat whom into Berlin first. The Germans greatly wanted to surrender to the Western Allies, not the Soviets! Had the US/British not reached Berlin when they did, the Soviets (Russians) would have taken over ALL of Berlin, instead of just EAST Berlin.
With the exceptions of Korea, the Cuban missile crisis, and Vietnam, the confrontation status between the US and the USSR remained about the same thru-out the Cold War.
It let to the US becoming totally involved in the war leading to materials and equipment from the US making its way to the Soviets.
The man reason why the US agreed to support the Israeli was because the US feared that the Soviets would influence the Arab states. If the Soviets gained influence with the with the Arabs it would the Soviets and Arabs stronger than the US.