Why did napoleon think they would defeat the mexicans army?

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.

result of the incas claiming exclusive right over numerous traditional routes, some of which had been constructed centuries earlier mostly by the wari empire