past history where mistakes have been repeated?

Answer 1

America's pull out of Vietnam caused the region to fall into communist hands. Laos became a puppet to North Vietnam, South Vietnam was brutalized for fighting the North, and Cambodia became a killing field. If the American troops are pulled out of Iraq too soon, Iraq will become a land in chaos and death. It will dissolve into a civil war. History does not repeat itself, it is repeated because idiots don't read history.

Answer 2

Napoleon's greatest downfall was his invasion into imperial Russia and Hitler repeated the same thing with his invasion into Soviet Union.