Eniwetok's needs for subsequent operations and to entmerate the minimum requirements prior to the conclusion of CASTLE. Task Group 7.4's study revealed seven major requirements during the next two years which would take top priority in the Five Year Plan. They were: l. Airfield improvements; 2. POL tank farm; 3. Construction of buildings to replace Bldg 135 (location of headquarters for the three test units); 4. Construction of 50' x 100! buildings for the buildup and 5. Erection of an additional prefab building 20' x 48! to pro- 6. Re-routing and paving of the perimeter road on south side 7. Construction of 22,000 square feet of additional combined storage of aircraft engines; vide additional space for electronics maintenance; of the airfield; and aircraft decontamination pad and wash rack. _ During the latter stages of CASTLE, announcement was made of Opera- tion REDWING, the proposed 1956 overseas testa. On - 15 April 1954, General Mills apprised General:Estes that in- formation at AFSWC indicated that the next test in the Pacific Proving Ground, Operation REDWING, was scheduled for the spring of 1956. Since a period of nearly two years would exist between CASTLE and REDWING dur- ing which the 4930th Test Support Group would be operating at minimm strength as a garrison force, General Mills stated that he was conten plating sending a junior officer to command the 4930th in place of Lt Colonel Donnell Massey (promoted to full colonel on 14 May 1954), who was originally mentioned for the job.” | In the days that followed, General Estes talked with Dr. Graves, Mls