18902 EXTRACTED VERSION OPERATION CASTLE OPERATION PLAN NO.3-53 March - May 1954 Headquarters Joint Task Force Seven Washington, D.C. P.W. Clarkson Major General, U.S. Army Commander 10 November 1953 NOTICE This is an extract of Operation Plan No. 3-53, which remains classified SECRET as of this date. Extract version prepared for: Director DEFENSE NUCLEAR AGENCY Washington, D.C. 20305 1 November 1981 Approved for public release; distribution unlimited.