The GI Bill provided soldiers returning from World War ll assistance with going to college. This gave America a generation of educated and more qualified individuals who went into white-collar jobs.
The leader who was in the USA was Jimmy carter. in Britain the prime minister was James Callaghan. However this is because the detente collapsed in 1979 after soviet invasion of Afghanistan.
As per the question however, in the 1980's the USA leader was Reagan and great Britain was Thatcher Margaret.
The first statement is correct.
The Siege of Vicksburg by the Union army lead to the inability of Confederate soldiers to receive supplies. This is because the Union army takes control of the Mississippi River. This river was used to transport soldiers,materials, and goods for the Confederate soldiers. Maintaining control of this part of the river near Vicksburg lead to the Confederate troops being split in half. This leads to their eventual surrender.
A clock? if thats what you mean the question isnt really detailed