The Tomb of the Unknowns, in Arlington National Cemetery, Virginia – more commonly referred to as The Tomb of the Unknown Soldier – was first built in 1921 as a tribute to an unidentified dead soldier found in France following World War One. However, since its refurbishment in the 1930s, it has come to represent all US service personnel who have died whilst on duty. It stands as a symbol of the ultimate sacrifice that many American men and woman have made to protect the liberties we hold dear.

Today, the tomb is an incredibly popular tourist attraction, with people coming from across the country, as well as the world, to pay their respects. As well as families and veterans, the tomb also attracts casual tourists keen to get a glimpse of the monument.

Although the vast majority of visitors behave impeccably, sometimes the crowds do not act in the respectful manner demanded by the monument. In the following video, we see a large crowd forming around the tomb. When a group of visitors started to giggle among themselves in front of the memorial, the guard broke his 21-step walk to instill some respect in them.

They will know how to act in future.