The Mexican-American War shaped a generation of future American leaders.
Zachary Taylor: nicknamed "Old Rough and Ready". He was the victorious general at the Battle of Monterrey that had American forces engaged in three days of urban warfare. He became a national hero after the battle of Buena Vista where 6,000 American troops were able to defeat Santa Anna's forces of 20,000. Taylor would later be elected President of the United States.
General Winfield Scott: nicknamed "Old Fuss and Feathers". Scott was a career military man, involved in every military campaign from the War of 1812 to the Civil War. Scott led the attack on the Mexican city of Veracruz and eventually marched across Mexico and captured the capital, ending the war.
John C. Fremont: helped capture California and declared it "The Bear State Republic." Fremont would later on enter American politics and become the first Republican candidate in the election of 1856.
Stephen Kearney: captured New Mexico and declared it apart of the United States. Kearney would go on to help capture the city of San Diego and would later serve as the military governor of California.
Franklin Pierce: served under General Winfield Scott and later rose to the rank of Brigader General. Pierce would later be elected the 14th President.
Robert E. Lee: was a Colonel under Winfield Scott and one of his top aides. Lee would earn distinction for his bravery in combat and leadership skills. During the Civil War he would become the commander of the Confederacy.
Ulysses S. Grant: served under Scott with Robert E. Lee and become close friends. During the war Grant would be rewarded twice for his bravery. The war had a deep impact on Grant, who would later say that he was morally against it.
Jefferson Davis: was a colonel of a volunteer regiment during the war serving under General Zachary Taylor. Due to his bravery in combat, the Governor of Mississippi would appoint him Senator. While in the Senate Davis would be a fierce defender of slavery and state's rights. Davis would later be chosen as the President of the Confederacy.