The Guard, Tomb of the Unknown Soldier Identification Badge is a military badge of the United States Army which honors those soldiers who have been chosen to serve as members of the Honor Guard, known as "Sentinels", at the Tomb of the Unknown Soldier. It is the third-least awarded badge in the US Military, after the Military Horseman Identification Badge and the Astronaut Badge. As of August 2021, 688 soldiers have been awarded this badge.