No, they are separate wars separated by a decade, different belligerents, and distinct outcomes—though causally linked.
| Aspect | Details |
|---|---|
| Belligerents | Texian settlers (Anglo + Tejano) vs. Centralist Mexican government (Santa Anna) |
| Cause | Mexican centralization (Siete Leyes), immigration restrictions, slavery disputes, local autonomy |
| Key battles | Gonzales, Alamo, Goliad, San Jacinto |
| Result | Republic of Texas independent (1836–1845); Mexico refused recognition |
| International status | Recognized by US, UK, France, Netherlands; not by Mexico |
| Aspect | Details |
|---|---|
| Belligerents | United States vs. Mexico |
| Cause | U.S. annexation of Texas (1845), border dispute (Nueces vs. Rio Grande), Manifest Destiny |
| Key battles | Palo Alto, Resaca de la Palma, Monterrey, Buena Vista, Veracruz, Cerro Gordo, Chapultepec, Mexico City |
| Result | Treaty of Guadalupe Hidalgo: Mexico ceded 55% of territory (CA, NV, UT, AZ, NM, CO, WY) |
| Texas role | Already a U.S. state (annexed Dec 1845); staging ground, troop source |
Texas Revolution → Independent Republic → U.S. Annexation → Border Dispute → Mexican–American War → Mexican Cession
The Revolution created the condition for the War. Without Texas independence and annexation, the specific casus belli (Rio Grande boundary) and political imperative (Manifest Destiny focused on Texas) would not have existed in that form.
Distinct wars. Different decades. Different countries fighting. Different treaties. Connected, not identical.