Prince Harry has arrived for the service to commemorate the 70th anniversary of the battle of Monte Cassino, one of the most important battles of the Italian campaign during the Second World War.
ITV News Royal Editor Tim Ewart is covering the service, along with royal producer Emma Wright.
The 70th a anniversary of the final battle of Monte Cassino. UK veterans gather to remember http://t.co/ToiomtBEWX
Prince Harry attends 70th Anniversary of the battle of Monte Cassino in Italy http://t.co/1WRneKnwB1
Tourists at the world famous landmark were treated to an unexpected sighting of Prince Harry as the royal took in some of Italy's sights.
Speaking exclusively to ITV News, Harry says it "makes no sense" that one of the Second World War's bloodies battles has been "forgotten".