The end of the 80s and early 90s saw the defeat of USSR in Afghanistan and eventual collapse of the Soviet Union.
This eventually lead a widespread change in Central America.
Earlier, the United States sought to control Central America and even supported dictators and regime changes to counter local communist parties.
In Europe, they similarly supported Eastern European Pro-Western parties.
However, by the end of 1992, the United States had abandoned as they did not see the USSR as a threat anymore.
The correct answer is - Different parts of the region were the most influenced by cultures that had easiest access to them.
Most of Eastern Europe is relatively flat lowland, and it also borders Asia, as well as being part of the great Eurasian steppes. Because of this, in Eastern Europe it was very common that new people with new cultures from Asia were coming, invading, integrating, and that had left a huge mark on the development and culture of the people living in this part of the continent. Starting with the Scythians, Sarmatians, Avars, Huns, Tatars, Khazars, Kumans, Mongols, Bulgars, Magyars, Szekeli, all came from Asia, and all had big influence on the region in whichever aspect do we look at it.