U-boats were naval submarines operated by Germany, particularly in the First and Second World Wars. The term is an anglicized version of the German word...

Z was shelved in favour of a crash building programme for submarines (U-boats) instead of capital surface warships, and land and air forces were given...

lesser maximum diving depth than earlier U-boat designs. It was planned that final assembly of Type XXI boats would eventually be carried out in the Valentin...

considered various submarine designs for specialized operations or improving U-boat performance. Many of these designs did not come to fruition for various...

The U-boat campaign from 1914 to 1918 was the World War I naval campaign fought by German U-boats against the trade routes of the Allies. It took place...

Germany and its occupied countries, which were also known as U-boat pens (after the phrase "U-boat" to refer to German submarines). Among the first forms of...

Type VII U-boats were the most common type of German World War II U-boat. 703 boats were built by the end of the war. The lone surviving example, U-995, is...

Group 22.3 (TG 22.3), one of six U-boats that were captured at sea by Allied forces during the war. All but one of U-505's crew were rescued by the Navy...

U-boats. U-177 U-178 U-179 U-180 U-181 U-182 U-195 U-196 U-197 U-198 U-199 U-200 U-847 U-848 U-849 U-850 U-851 U-852 U-859 U-860 U-861 U-862 U-863 U-864...

Atlantic, after sinking a merchant ship from an Allied convoy, the German U-boat U-571 has her engines badly damaged by depth charges from a British destroyer...