Aimed at all those who have an interest in the US Army and the Mexican-American War of 1846-1848, this is a thorough analysis of both the US and Mexican armies, with chapters detailing the range of their uniforms, weapons and equipment, from the colourful Napoleonic-style dress of the Mexican lancers to the cool professionalism of the US artillery who ultimately won the war. The Mexican-American War was a crucial conflict for the emerging United States, establishing control over both Texas and California from its southern neighbour, and creating an army that would later face a greater test in the American Civil War. Many of the greatest commanders of the Civil War - including Ulysses S. Grant and Robert E. Lee - served on the same side in the war against Mexico. From the Battle of Buena Vista to the capture of Mexico City, this book is a detailed study of both armies, and includes unpublished pictures from both American and Mexican archives.