Pres. Truman signs the Selective Service Bill into law a new bill lowering the draft age from 19 to 18 1/2 and establishing the basis for U.M.T.-Universal Military Training. Defense Secretary Marshall praises the new law as strengthening America's hand in the fight for peace. Interior White House; President Harry S. Truman signs document while others look on and flashbulbs pop. MS document with signatures. Truman shakes hands with Secretary George Marshall and gives him pen. Exterior; Marshall speaks at microphones for press conference (Nat sound), emphasizes military strength but goal of keeping peace. Establishing shot - President Truman signing the Selective Service Bill. CUS - The Documents. MS - President Truman shaking hands and then presents the pen to Secretary of Defense Marshall. Secretary of Defense, George Marshall: "Signing by the President a few minutes ago of the Universal Military Training and Service Law, represents a step of great historic significance. It will enable us to face the uncertainties of an explosive International situation, with the knowledge that we can be strong militarily without having to imperil our security economically. No matter how long the present world tension may continues, and it will permit us there after to continue strong militarily, in keeping with our great purpose of promoting the peace of the world".