The Mexican War was America?s first truly modern war. Steamships ferried troops, daguerreotypes captured the spectacle of infantry and cavalry marching off to battle, newspapermen reported from the front lines for the first time, and telegraphs helped speed news of victories to eager readers back home. For the first time, large numbers of the regular Army?s field-grade officers were West Point-trained. Weapons technology advances such as the mobile field artillery, the Colt six-shooter and the Sharp?s Rifle gave the U.S. Army daunting firepower. These advantages ensured victory even when Mexican troops outnumbered Americans by as much as 4-to-1.