‘the responsibility of the Operations Division and the Logistics Division. This was greatly simplified for CASTLE because of the experience gained during IVY planning and execution. ordination with scientific personnel is vital. Close co- Through such co- ordination the J-3 Division planners are able to formulate a general concept of operations. The next step is to determine what type of personnel, ships, and aircraft are required. Estimates of requirements are tabulated in draft form and circulated throughout the Task Force and the various Service and AEC organizations which will be affected—-e. g., Military Air Transportation Service (MATS) Headquarters, CINCPAC, SFOO, etc., for comments and suggestions. Thus most of the exceptions taken to the plans are over- come as a result of the coordination and consequent discussions with the various interested parties. for formal submission to JCS. A paper is then finalized By the time the paper goes to JCS there remains little change to be accomplished other than that de- sired by the JCS, At the same time, the Task Force Commander re- quests authcrity to approach the three Services separately and directly for changing or procuring any additional support in tne event changes in concept warrant such action. In the event mod- ification to plans becomes greater than anticipated, a second report to the JCS may become desirable as was the case during CASTLE when a "letter report" on modifications was forwarded to JCS in February, 1953, some seven months subsequent to the submission of the original CASTLE paper on military support. 29