Prime Minister of Canada lays a wreath at the Canadian Cross of Sacrifice in Arlington National Cemetery Prime Minister of Canada Justin Trudeau and his wife Sophie lay a wreath at the Canadian Cross of Sacrifice at Arlington National Cemetery, March 11, 2016, in Arlington, VA. Trudeau laid a wreath at the Tomb of the Unknown Soldier and the Canadian Cross of Sacrifice while at the cemetery. (U.S. Army photo by Rachel Larue/Arlington National Cemetery/released).