29th August 1949:  President Harry S. Truman (1884 - 1972) signing the North Atlantic Treaty which marked the beginning of NATO, behind him are (from left) Sir Derrick Hoyes Miller, Henrik de Kauffman, W D Matthews, Louis Johnson, Wilhelm Munthe de Morgenstienne, Henry Bonnet,  Pedro Theotonio Pereira, Dean Acheson, Jontchess reuchlin and Mario Lucienni.  (Photo by MPI/Getty Images)