A short history of the military forces involved in the US-Mexican War, 1846-48 In, Armies of the US-Mexican War, Gabriele Esposito examines the organization, uniforms, and operations of the two combatants in the years 1846-1848. The US-Mexican war is not well covered in military history, but it was a pivotal action in the histories of both the US and Mexico. For the US, with a small professional army, it was the breeding ground for officers and strategies that marched to war in 1861. The Mexican Army was a large professional force, tempered by civil war and local uprisings. This clash sent the two nations on different paths and with different fortunes. This is still a colorful era for martial uniforms as shown in this excellent illustrated volume with multiple plates created just for this book.