A Chronology of the U.S.-Mexican War
Battles, Skirmishes & Other Important Events

1845-6    1846    1847    1848

1848

• 2 February 1848: Treaty of Guadalupe Hidalgo signed, formally ending the war.
• 10 March 1848: U.S. Senate ratifies Treaty of Guadalupe Hidalgo, with amendments.
• [date?] March 1848: Santa Anna departs Mexico for exile in Jamaica.
• 25 May 1848: Mexican Congress ratifies Treaty of Guadalupe Hidalgo.
• 4 July 1848: President Polk formally announces ratification of Treaty of Guadalupe Hidalgo.
• 2 August 1848: Last U.S troops leave Mexico.