An impeccably uniformed relief commander appears on the plaza to announce the Changing of the Guard. Soon the new sentinel leaves the Quarters and unlocks the bolt of his or her M-14 rifle to signal to the relief commander to start the ceremony. The relief commander walks out to the Tomb and salutes, then faces the spectators and asks them to stand and stay silent during the ceremony.
The relief commander conducts a detailed white-glove inspection of the weapon, checking each part of the rifle once. Then, the relief commander and the relieving sentinel meet the retiring sentinel at the center of the matted path in front of the Tomb. All three salute the Unknown who have been symbolically given the Medal of Honor. Then the relief commander orders the relieved sentinel, “Pass on your orders.” The current sentinel commands, “Post and orders, remain as directed.” The newly posted sentinel replies, “Orders acknowledged,” and steps into position on the black mat. When the relief commander passes by, the new sentinel begins walking at a cadence of 90 steps per minute.
The Guards of Honor at the Tomb of the Unknown Soldier are highly motivated and are proud to honor all American service members who are “Known But to God.”