Why did so many former Nazis end up in South America after WW2?
There were several extreme right-wing governments in South America, notably Juan Peron’s Argentina. Nazi Germany had good relations with those governments before the Second World War and many Nazis had connections there. As it was nearly impossible for senior Nazis to stay in Europe, South America was a good place to flee to at the end of the war. Several underground systems were established to smuggle Nazis into South America, particularly the one run by the notorious Odessa. BTW. Not all South American nations were on good terms with Nazi Germany. Brazil declared war on Germany and had sent troops to serve in the Italian campaign.