IMMEDIATE RELEASE March 31, 1954 407764 Statement by Lewis L, Strauss Chairman, Atomic Energy Commission The President has authorized me to make available those portions of my report of yesterday to him, the publication of whigh would not compromise information vital to our national security. I have just returned from the Pacific proving Grounds of the Atomic Energy Commission where I witnessed the second part of a test series of thermonuclear weapons, I will describe it as well as Iam able, but perhaps before doing so it would be appropriate to begin with a short summary of the historical background. We detected the test of an atomic weapon, or device, by the Russians in August of 1949, Realizing that our leadership was there- fore challenged and that our sole possession of the weapon which had been a major deterrent to aggression had been cancelled, it became clear that our superiority would thereafter be only relative and dependent upon a quantitative lead -- that is to say, upon our possession of greater numbers of atomic weapons so long as that could be maintained, There was, however, the alternative of a qualitative lead if we could make a weapon of preater force -- greater than the fission weapons by a degree of magnitude comparable to the difference between fisgion bombs and conventional bombs, A theoretical method of accomplishing this was known to our scientists, In January 1950 the President directed the Atomic Energy GCom- mission to undertake the necessary steps to see if this weapon, variously called the hydrozen bomb, the Fusion bomb, and the thermenuclear bomb, could in fact be made. As you know, thanks to the ingenuity of those scientists and engineers who devoted themselves to the project, the feasibility of the fusion reaction was demonstrated and a prototype was tested at Eniwetok in Novem er 1952, This test produced the largest man-made explosion ever witnessed REPRODUCED AT THE DWIGHTD. EISENHOWER LIBRARY to that date, and from that point we moved into refinernent of design and other development, In August of last year the Russians also testeda weapon or device of a yield well beyond the range of regular fission weapons and which derived a part of its force from the fusion of light elements, There is good reason to believe that they had begun work on this weapon substantially before we did, The present series of tests has heen long in the planning, It is conducted jointly by the Atomic Energy Commission and the Department of Defense. A Task Force composed of the three armed services and a scientific staff representing the Commission was established last year in accordance with the procedure successfully followed in preceding tests outside our continental limits. The Navy, Air Force, and Army have successively supplied the commandfor the Task Forces, Early this January, men and supplies began to move out tc the Proving Grounds for this series. The first shot took place onits scheduled date of March 1, and the second on March 26, Both were successful, No test is made without a definite purpose anda careful determination that it is directed toward an end result of major importance to our military strength and readiness, The results which the scientists at Los Alamos and Livermore had hoped to obtain from these two tests were fully realized, and enormous potential has been added to our military posture by what we have learned, REPOSITOR Cony Fe : COLLECTION Pegg COrigfiererin ied! BOX Na. Pa FOLDER (ference.

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