Outnumbered Mexican army defeats French at Battle of Puebla

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During the French-Mexican War (1861-1867), an outnumbered Mexican army defeats a powerful invading French force at Puebla. The retreat of the French troops at the Battle of Puebla represented a great moral victory for the people of Mexico, symbolizing the country’s ability to defend its sovereignty against a powerful foreign nation.
In 1861, Benito Juarez became president of Mexico, a country in financial ruin, and he was forced to default on his debts to European governments. In response, France, Britain, and Spain sent naval forces to Veracruz to demand reimbursement.

Britain and Spain negotiated with Mexico and withdrew, but France, ruled by Napoleon III, decided to use the opportunity to carve a dependent empire out of Mexican territory. Late in 1861, a well-armed French fleet stormed Veracruz, landing a large French force and driving President Juarez and his government into retreat.
Led by General Ignacio Zaragoza, an estimated 2,000—5,000 Mexicans fortified the town and prepared for the assault by the well-equipped French force.

On the fifth of May, or Cinco de Mayo, Lorencez gathered his army and began an attack from the north side of Puebla.

The battle lasted from daybreak to early evening. After Lorencez realized his superior French force was losing far more troops than the Mexicans, he completely withdrew his defeated army.