The Mexican-American War played a critical role in defining the border between the two nations that remains in place today.

In 1847, knowing that the capture of the Palacio Nacional would greatly disarm the Mexican army, the Marines stormed the enemy fortress during the Battle of Chapultepec.

After two days of battle, the Marines gained control of the castle, better known as the “Halls of Montezuma.”

The Marines were then given the honor of raising the Stars and Stripes over the palace to mark their victory. Upon returning home, the same Marines presented their flag to the commandant.

The victory at the “Halls of Montezuma” remains a part of Marine Corps tradition, immortalized in the opening line of the famed Marines’ Hymn.