One of the most prestigious military honors is to become a Tomb Guard at the Tomb of the Unknown Soldier inside Arlington National Cemetery. A small fraction of those who attempt make the final cut.
To become a member, each candidate must study the cemetery extensively in order to answer any question posed to them regarding where people are buried and the cemetery’s history. They must also perform a uniform test where imperfections are measured to a 64th of an inch and fail after two mistakes. Finally perform a mock changing of the guard.
Once a member it is common for a Guard to prepare their uniform for up to six hours before guarding the tomb. Their sunglasses are specially molded to each Guard’s face.
A Guard’s uniform has an “Honor Guard” patch but no insignia, so as not to outrank anyone buried in the cemetery.
The Tomb of the Unknown Soldier has been guarded continuously (24/7) with no exceptions since July 2, 1937.