It is protected by the fact that it has a system of separation of powers with three branches that control each other and prevent tyrannical behavior from a single branch. They are also separated into local provinces and autonomous regions that are ruled by small scale governments that have some degree of independence and that could easily oppose a new form of tyrannical government.
The important Intermediate-Range Nuclear Forces Treaty was signed following the Washington Summit on December 8, 1987.
The Intermediate-Range Nuclear Forces Treaty (INF Treaty, formally Treaty Between the United States of America and the Union of Soviet Socialist Republics on the Elimination of Their Intermediate-Range and Shorter-Range Missiles; is an arms control treaty between the United States and the Soviet Union (and its successor state, the Russian Federation). U.S. President Ronald Reagan and Soviet General Secretary Mikhail Gorbachev signed the treaty on 8 December 1987.
Basically the first people :)
I don’t know how many you needed
No, the u.s was not supportive of Latin American Revolutions