the were several reasons for USSR decline.
1. the Economic Breakdown. USSR could not manage the economy well it put a lot of burden on its slow growing economy. their expenditure were more then their revenues. it was in proxy wars in various regions which proved costly to it.
2. Arms and Nuclear Race. USSR was in competition with USA in arms and nuclear race which was very expensive at that time with not developed technology. it burdened the economy more. it was not a success at first, many attempts were made to get success
3. Ideology. USSR's Ideology was the other reason for its decline. because their policies were very rigid and harsh. the decisions were carried out single highhandedly supreme leader. ideology (Communism) was very harsh and repressive.
4. harsh control and brutal policies lead to weak control of the other States so in DEC,1991 Soviet Union disintegrated into 15 countries.
Disagreements between the two formed early divisions within the government regarding policies on economics. They became the foundation for political parties as Hamilton wanted to have high trade tariffs and a centralized bank (Bank of the United States) and Jefferson wanted to concentrate on what would be good for the common man (the policies of the Democrat-Republicans).
The correct answer is by negotiating a peace deal
The Tet Offensive comprised of a number of surprise attacks on all major installations in South Vietnam which were carried out by the Viet Cong and North Vietnamese military. The event proved that the U.S was not winning the war and changed public opinion about the war leading the U.S to the negotiation table