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1846 | 25 April - Thornton Skirmish, near Brownsville, south Texas |
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1846 | 3-9 May - Mexican Army besieges "illegal" American outpost, Fort Texas |
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1846 | 8 May - Battle of Palo Alto, Arista invades "American" Texas |
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1846 | 9 May - Battle of Resaca de la Palma, Arista is defeated by Zachary Taylor |
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1846 | 13 May - U.S. declares war against Mexico |
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1846 | 18 May - U.S. troops occupy Matamoros, Mexico |
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1846 | 6 July - Mexico declares defensive war against United States |
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1646 | 7 July - Battle of Monterey, American Naval forces occupy Monterey, California |
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1846 | 14 July - U.S. forces occupy Camargo |
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1846 | 16 August - Santa Anna returns from exile in Cuba |
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1846 | 18 August - Battle of Sante Fé |
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1846 | 20-24 September - Battle of Monterey |
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1846 | 7 October - Battle of Dominguez Rancho |
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1846 | 14 November - U.S. Navy occupies Tampico |
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1846 | 16 November - American forces occupy Saltillo |
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1846 | 16 November - Battle of Natividad in northern California |
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1846 | 6 December - Battle of San Pasqual |
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1846 | 25 December - Battle of El Brazito in New Mexico |
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1847 | 2 January - Battle of Santa Clara in California |
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1847 | 8 January - Battle of Rio San Gabriel for control of Los Angeles, California |
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1847 | 9 January - Battle of La Mesa for Los Angeles, California |
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1847 | 24 January - Battle of Mora, New Mexico |
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1847 | 24 January - Battle of Cañada in New Mexico |
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1847 | 29 January - Battle of Embudo Pass, New Mexico |
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1847 | 3-4 February - Battle of Pueblo de Taos, New Mexico |
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1847 | 22-23 February - Battle of Buena Vista |
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1847 | 28 February - Battle of the Sacramento, California |
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1847 | 9-29 March - Battle of Veracruz, Navy lands 10,000 U.S. troops on beaches at Vera Cruz |
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1847 | 29 March - Mexican forces at Vera Cruz capitulate |
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1847 | 18 April - Battle of Cerro Gordo (the "Thermopylae of the West) |
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1847 | 6 June - Skirmish at Las Vegas |
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1847 | 17 August - Battle of Contreras |
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1847 | 18 August - Battle of Churubusco |
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1847 | 8 September - Battle of Molino Del Rey |
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1847 | 13 September - Battle of Chapultepec |
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1847 | 13-14 Sept - Battle for Mexico City |
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1847 | 14 September - Siege of Puebla to 12 October |
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1847 | 15 September - Fall of Mexico City, U.S. forces under General Winfield Scott occupy the city |
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1847 | 9 October - Skirmish at Huamantla |
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1847 | 12 October - Puebla capitulates to U.S. forces |
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1847 | 19 October - Affair at Atlixco |
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1848 | 2 February - Treaty of Guadalupe Hidalgo ends Mexican-U.S. war |
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1848 | 10 March - U.S. Senate ratifies Treaty of Guadalupe Hidalgo (with amendments) |
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1848 | April - Santa Anna escapes to exile in Jamaica |
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1848 | 25 May - Mexican Congress ratifies Treaty of Guadalupe Hidalgo |
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1848 | 4 July - President Polk formally announces ratification of Treaty of Guadalupe Hidalgo |
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1848 | 2 August - Last U.S troops leave Mexico |
