LONDON (AP) — Queen Elizabeth II is leading ceremonies in Britain to mark the 70th anniversary of the victory over Japan during World War II.

The monarch and other members of the royal family will commemorate the event at a church service Saturday and a wreath laying ceremony. Veterans of the conflict and former prisoners of war are also set to join the ceremony at St. Martin in the Fields.

Afterward, veterans, internees and members of the military will walk through central London toward Westminster Abbey in a special parade.

London's police force has reassured participants after media reports that extremists intend to target the ceremonies. Scotland Yard Commander Dave Musker says police have worked closely with the Ministry of Defense and the Royal British Legion to make sure the ceremonies pass peacefully.