The task fell to two main departments. 'A' Force, under Dudley Clarke, which had been successful early on, once again took charge of the Mediterranean region. In Europe, however, responsibility shifted away from the LCS, which took on a coordination role. Prior to Dwight Eisenhower's appointment as Supreme Commander, all planning for "Overlord" fell to the Chief of Staff to the Supreme Commander Allied Forces (COSSAC), Frederick E. Morgan. Under his regime, the deception department, Ops (B), had received limited resources and left most of the planning so far to the London Controlling section. With Eisenhower's arrival, Ops (B) expanded and Dudley Clarke's deputy from 'A' Force, Noel Wild, was placed in control. With the new resources, the department put together the largest single segment of "Bodyguard", Operation Fortitude.