On May 5, 1862, the Mexican army defeated the French in the Battle of Puebla. This prevented French Emperor Napoleon III from supplying weapons to the Confederacy during the Civil War. Napoleon III had planned to trade weapons for cotton with the Confederate states during France's invasion of Mexico.

On May 5, 1862, the Mexican army defeated the French in the Battle of Puebla. This prevented French Emperor Napoleon III from supplying weapons to the Confederacy during the Civil War. Napoleon III had planned to trade weapons for cotton with the Confederate states during France's invasion of Mexico.