Retreat:

At 1700 hours, and sometimes at sunset, depending on the military installation, a detachment of military personnel assembles at the flag pole in front of the headquarters building of the military installation. They assemble to respectfully remove the flag of the United States of America from the flag pole.

A cannon fires a round. The detachment pulls the flag slowly down the flag pole. As they do this, they render the hand salute. The bugler plays “Taps.”...