. . . . . . . "The American Naval planning section. London" . . . . . . . . "American Naval Planning Section, London"@en . . . . . . . . . . . . . "The American Naval Planning Section, London" . . . . . . . . . . . "Great Britain." . . "Atlantic Ocean." . . "1914 - 1918" . . "Guerre mondiale 1914-1918. Armistice." . . "Guerre mondiale 1914-1918. Guerre navale." . . "North Sea." . .