Most of the Polish Navy escaped to Britain, and tens of thousands of Polish soldiers and airmen escaped through Hungary and Romania or across the Baltic Sea to continue the fight in France. Many Poles subsequently took part in Allied operations: in Norway (Narvik), in France in 1940 and in 1944, in the Battle of Britain, in the Battle of the Atlantic, in North Africa (notably Tobruk), Italy (notably at Cassino and Ancona), at Arnhem, Wilhelmshaven, and elsewhere.