. . . . . . . . . . . . . . . "The War Puzzle Revisited"@en . . "The war puzzle revisited" . "The war puzzle revisited"@en . . "Electronic books"@en . . . . . . . . . . "A new scientific explanation of the onset and expansion of war and the conditions of peace."@en . . . . . . . . . . . "Oorlog." . . "Guerre Origines." . . "Friede." . . "Ursache." . . "Kriegsursache." . . "Krieg." . . "guerre causes." . . "Guerre Causes." . "Internationale Politik." . . "Guerre." . . "Oorzaken." . . . . "HISTORY Military Other." . . "War Causes." . . "TECHNOLOGY & ENGINEERING Military Science." . . "Cause (Histoire)" . .