This is a list of monuments and memorials that were established as public displays and symbols of the Mexican–American War of 1846–1848 and its veterans on both sides. One of the most significant is the Mexico City National Cemetery, one of the first U.S. national cemeteries. The U.S. did not start its official system of national cemeteries until an 1862 act of Congress authorized U.S. President Abraham Lincoln to proceed. However, on September 28, 1850, an American military cemetery was established in Mexico City in the aftermath of the Mexican–American War.