The Basque Auxiliary Navy was a section of the Spanish Republican Navy operating in the Bay of Biscay between 1936 and 1937. The naval force began their operations in October 1936 at the behest of the autonomous Basque Government. The main Basque Navy base was at Portugalete.
Churruca-class destroyer Císcar of the Basque Auxiliary Navy
Juan Azkarate, last surviving member of the Basque Auxiliary Navy, in 2016
The Spanish Republican Navy was the naval arm of the Armed Forces of the Second Spanish Republic, the legally established government of Spain between 1931 and 1939.
Republican sailors playing musical instruments on board battleship Jaime I, Almería, February 1937.
The seaplane carrier Dédalo
Submarine rescue ship Kanguro and Spanish submarine C-3 at Cartagena naval base before the submarine was sunk by German submarine U-34
Cruiser Emperador Carlos V was no longer in active service during the Republic. It was used as a pontoon for exercises