A caisson stops in the shadow of the Washington Monument during a US Marine service in Arlington National Cemetery.

[igp-video src=”” poster=”https://www.arlington.media/wp-content/uploads/2021/11/a-caisson-stops-in-the-shadow-of-the-washington-monument-during-a-us-marine-service-in-arlington-nat-1.jpg” size=”large”]A caisson stops in the shadow of the Washington Monument during a US Marine service in Arlington National Cemetery.