Mexico, 1993 AD., Mexico City mint, 50 Pesos, Ninos Heroes commemorative, KM 571.

Mexico, Mexico City mint, Ninos Heroes commemorative non circulating issue, 1993 AD.,
50 Pesos (38,9 mm / 34,20 g), bimetallic flan,center ring 0.925 silver, within brass ring, 34,11 theor. mint weight, mintage 2.000.000 , axes coin alignment ↑↓ (180°), reeded edge,
Obv.: ESTADOS UNIDOS MEXICANOS , above an oak and laurel wreath on a yellow bronze circle around an inner silver flan with the coat of arms of Mexico: a Mexican Golden Eagle perched upon a prickly pear cactus devouring a snake (the legend of Tenochtitlan).
Rev.: N$ 50 / M° - 1993 / NIÑOS HÉROES , six heads (depicting the Boy Cadet Heroes of the Battle of Chapultepec) facing with date at upper right, all within circle and 1/2 wreath .
KM 571 .

Year / Mint Mark / Mintage
1993 Mo 2,000,000
1994 Mo 1,500,000
1995 Mo 1,500,000

The Battle of Chapultepec, in September 1847, was a United States victory over Mexican forces holding Chapultepec Castle west of Mexico City during the Mexican-American War. During the battle, six Mexican military cadets refused to fall back when General Bravo finally ordered retreat and fought to the death. These were teniente (lieutenant) Juan de la Barrera and cadets Agustín Melgar, Juan Escutia, Vicente Suárez, Francisco Márquez and Fernando Montes de Oca, all between the ages of 13 and 19. According to legend, the last of the six, Juan Escutia, grabbed the Mexican flag, wrapped it around himself and jumped off the castle point to prevent the flag from falling into enemy hands. In 1967, Gabriel Flores painted a mural depicting "Los Niños Héroes". A mural decorates the ceiling of the palace, showing Juan Escutia wrapped in the flag, apparently falling from above. A monument stands in Chapultepec Park commemorating their courage. The cadets are eulogized in Mexican history as Los Niños Héroes, the "Child Heroes" or Heroic Cadets.

The Mexican–American War, also known as the Mexican War or the U.S.–Mexican War, was an armed conflict between the United States of America and Mexico from 1846 to 1848 in the wake of the 1845 U.S. annexation of Texas, which Mexico considered part of its territory despite the 1836 Texas Revolution. Combat operations lasted a year and a half, from spring 1846 to fall 1847. American forces quickly occupied New Mexico and California, then invaded parts of Northeastern Mexico and Northwest Mexico; meanwhile, the Pacific Squadron conducted a blockade, and took control of several garrisons on the Pacific coast further south in Baja California. Another American army captured Mexico City, and the war ended in victory of the U.S.

The Treaty of Guadalupe Hidalgo specified the major consequence of the war: the forced Mexican Cession of the territories of Alta California and New Mexico to the U.S. in exchange for $15 million. In addition, the United States assumed $3.25 million of debt owed by the Mexican government to U.S. citizens. Mexico accepted the loss of Texas and thereafter cited the Rio Grande as its national border.