"Vizcaya front" . "140 guns" . "1 destroyer" . . "Euzko Gudarostea" . "Condor Legion" . "2 destroyers" . . "started an offensive against the Republican-held Biscay Province" . "65,000" . . . "Biscay Province" . . "55,000" . "35,000 casualties (10,000 dead)" . "Biscay Campaign" . . . "200 guns" . . . "1 battleship" . "Nationalist victory" . . "1937-07-01" . "launched an offensive" . "3 submarines" . . . . "2 cruisers" . "offensive" . "150 aircraft" . . . "Spanish Republic" . "25\u201330 aircraft" . . "Biscay Campaign" . . . . . . "Spain" . . "Nationalist Spain" . . "Thomas: 40,000 men" . "Isaac Puente Battalion" . . "Biscay campaign" .