U-boat
GERMAN SUBMARINE OF THE FIRST OR SECOND WORLD WAR
Unterseeboot; U-Boat; U Boat; U boat; Uboat; U-boats; German submarines; German submarine; German U-boats; U-Boats; U boats; U boot; U-Boot; German U-boat; Eiserne Särge; Undersea boat; Underseaboat
U-boats were naval submarines operated by Germany, particularly in the First and Second World Wars. Although at times they were efficient fleet weapons against enemy naval warships, they were most effectively used in an economic warfare role (commerce raiding) and enforcing a naval blockade against enemy shipping.