These military blunders had shocking and long-lasting consequences. Welcome to WatchMojo, and today were counting down our picks for military campaigns, expeditions, and decisions, mostly American, that went deeply awry. Our countdown of military operations that went bad includes the Pancho Villa Expedition, the Invasion of Canada, the Battle of Antietam, and more! What military operation do you think should be on this list? Let us know in the comments.

Watch more war videos here:
10 DEADLIEST Wars in History: https://youtu.be/B0DIQnnq3iQ
Top 20 Battles That Changed History: https://youtu.be/hrLPrTqtwJc
Top 10 Times The World Was On The Brink Of War: https://youtu.be/tfzgp2orAV8

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