Groups such as the Visigoths, Vandals, Angles, Saxons, Franks, Ostrogoths were tribes of people that helped bring about the collapse of rome.
Some causes and effects of European exploration is:
1. They brought diseases to the U.S and Africa which effected those people and causing them to die
2. They found Africans and wanted their gold and money which effected them to start the American slave trade
And many other reasons....
A major neutral country was, as an example, Yugoslavia (the leader non-aligned movement), which supported trade relations with both NATO and the Warsaw Pact. In the later years of the Cold War, China, became mostly neutral (though some may say that they became more Western Aligned). Throughout the Cold War, India officially didn't join any alliance, however they were often supported by the Soviet Union in conflicts against China or Pakistan.
