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The role of the President pro tempore of the Senate is mostly ceremonial as he is appointed to work in the place of a vice president when he is not available and take everything in control.
Mostly the power is in the hands of the other leaders and the senators but in the absence of the vice president the President pro tempore of the senate takes his place and certain duties are authorised which he can perform during that time.
Care about the common good even if they were doing well personally.
The US involvement in Vietnam was a one to forget by the US, as it brought them lot of shame and shaken reputation among the international community. The US thought that Vietnam would be easy to take over, but they very wrong. The elections in the country were canceled, which led to a situation where there wasn't official governing body, creating chaos. The Buddhist practices were going in the advantage of the US enemy, as the Buddhists were not very fond of the Western world and the imposition of its culture and religion it tried to do. The Viet Cong, a strong and very well organized paramilitary organization, was against the US, and it was an organization that had people all over the country, knew the terrain very well, and its members were very well equipped and motivated. All of these factors led to a defeat of the US army in Vietnam, thus losing the Vietnam War.
