CHRONOLOGY (Contd) 1953 May - Consolidation of Eniwetok and Kwajalein supply accounts at Eniwetok May The Joint Chiefs of Staff approved revised CASTLE force requirercents June Major General Percy W. Clarkson, Commander, JTF SEVEN, and Task Group Commander, visited Forward Area 15 July Task Group 7.4 manned at Kirtland 1 September Original date for beginning of CASTLE 27 October Exercise TIGER/C4T, ZI rehearsal for CASTLE, conducted at San Diego Naval Air Station, California December Large~scale build-up of men and materiel began at Mniwetok and Bikini Atolls September operational phase 1954 2 January ADVON (Advance Echelon of Hq TG 7.4) arrived at Eniwetok and operational phase coxmzenced 27 January Main body of Hq TG 7.4 arrived at Eniwetok 23 February First full<scale Joint Task Force rehearsal conducted at Enive tok and Bikini Atolls 1 March ae fired at Bikini Atoll 1 March Personnel contaminated by BRAVO fall-out on Rongelap, Ailinginae, Rongerik and Utirik 27 March ROMEO QEEMIRY pica atBikini Atoll (0630 * Time}: 7 April 12 April AFWU/HO J27

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