and to provide any additicnal technical training nocded to quality, newly assigned personnel in their primary dutics, Concurrently with this training, several plans were being established, Since ‘hese plans were the basis for later planning along certain lines, it is convenient to discuss them here. First, Natura’ Disaster Defense Plan 1-53 was rescinded by Natural Disaster Defense Plan 2-53. This plan described in detail the types of natural disasters to be oxpected at ENIWETOK ISLAND, and assigned specific tasks to units and individuals to. be performed in the event of these disasters, Just prior to the ope rational part of CaSTLE, CTG 7.2 Natural Disaster Defense Plan 1-54 was published, superseding the preecding 2-53, but was written primarily for TG 7.2 as CTG 7.2 had. been relicved as ATCOM ENIWETOK upon the arrival of CuTF SZVEN in tho ae forward arca, ; Secondly, CTG 7.2 General Energency Operation Plan 11-53 was published and replaced Hostile Action Alert Plan 1-53. ‘This plan pro- vided a mobile defense force for the ground security of ENIWETOK and BIKINI ATOLLS; this force had been provided for in order to accomplish one of the primry missions of CTG 7.2. When CIG 7.2 published Opera- tion Plen 3-53 in December 1953, ho included in it as Annex G, a Hostilo Action Alert Plan. This superseded GEOP 11-53, and delincated the rc- sponsibilities of CT™ 7.2 inthe event of a Hostile Action.Thirdly, and first in importance among the planning activitics, cama the publication of the operation ordors, CUTF SEVEN initiated CASTLE by publishing Operation Crder 1-53 on 1 June 1953. CTG 7.2 Qu? published his implementstion ‘of this order on 13 Octobcr 1953 in the . ee re ee