The major events that increased polarization on the world stage from the close of world war II through 1961 had to do with the Cold War between Russia and the US--primarily proxy wars such as the Korean War.
Answer:
They used death marches in order to hide the proof that the Holocaust happened or at least that it wasn't as bad as it was. In 1945 the Germans were decisively losing the war so the SS organized the so-called death marches. They were most likely called death marches by the prisoners and not the SS. They evacuated the camps to keep prisoners from getting liberated.
Latin America was the geographic area had the most population and economic activity during the colonial period. This area is rich in minerals and raw materials in which these were traded by other countries. This has also the most number of nations inside it.
