Aéronavale
Important efforts were also made in the defense of the harbors of Leixões, Horta, Ponta Delgada, Funchal and coast of the Algarve, with engagements occurring when Ponta Delgada and Funchal were attacked and bombarded by U-boats. The Portuguese Navy also supported the naval base and air station operated by the United States Navy in Ponta Delgada and the naval air station operated by the French Naval Aviation in São Jacinto, Aveiro. A Portuguese naval air detachment was deployed to Horta, Azores and a naval air station was built in the Culatra Island, Algarve, although never activated because the War meanwhile ended.