Invasions are risky, costly operations that can cost the aggressor dearly. Here are 8 invasions that may have made some generals wish for a time machine:
1. Napoleon invades Russia
Photo: Library of Congress
Though the Soviets would achieve victory in the Winter War of 1939-1940, their first thrust into Finland was a disaster. 450,000 Soviets with approximately 4,000 planes and 6,000 tanks and armored vehicles were stopped by 180,000 Finnish troops operating 130 outdated aircraft and 30 armored vehicles.