Battle of Chapultepec
Overview
 
The Battle of Chapultepec, in September 1847, was a United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 victory over Mexican forces holding Chapultepec Castle west of Mexico City
Mexico City
Mexico City is the Federal District , capital of Mexico and seat of the federal powers of the Mexican Union. It is a federal entity within Mexico which is not part of any one of the 31 Mexican states but belongs to the federation as a whole...

 during the Mexican-American War.
On September 13, 1847, in the costly Battle of Molino del Rey
Battle of Molino del Rey
The Battle of Molino del Rey was one of the bloodiest engagements of the Mexican-American War. It was fought in September 1847 between Mexican forces under General Antonio Léon against an American force under General Winfield Scott at a hill called El Molino del Rey near Mexico City.-Background:On...

, U.S. forces had managed to drive the Mexicans from their positions near the base of Chapultepec Castle guarding Mexico City from the west. However, Army engineers
United States Army Corps of Engineers
The United States Army Corps of Engineers is a federal agency and a major Army command made up of some 38,000 civilian and military personnel, making it the world's largest public engineering, design and construction management agency...

 were still interested in the southern approaches to the city.
 
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