The situation in Mexico City is chaotic.

Antonio López de Santa Anna, president once again, denounces both congress and his own subordinates in the executive branch for their lack of resolve in preparing the defense of the capital.

They, in turn, denounce him for his failures in battle.

On August 20, 1847, the Army of Occupation asks for the surrender of Mexico City, but the battle continues until September 13, 1847, when the last bastion of Mexican resistance falls during the famous Battle of Chapultepec.

During the battle, young cadets from the Mexican military academy, the Niños Héroes (or "boy heroes") leap to their deaths rather than surrender.

The United States victory marks the end of the war and the beginning of negotiations for peace.