For the rest of the war, the Dutch navy was based in Allied countries: the Dutch navy had its headquarters in London, and smaller units in Ceylon (modern day Sri Lanka) and Western Australia. Around the world Dutch naval units were responsible for transporting troops, for example during Operation Dynamo at Dunkirk and on D-Day, they escorted convoys and attacked enemy targets. Dutch submarines scored some victories, including one on a "Kriegsmarine" U-boat in the Mediterranean Sea, which was sunk by , but during the war the Dutch Navy suffered heavy losses, particularly in the Pacific Theatre.