 Complete the following phrase:  Since 1955, the reserve flying force included squadrons that were not located with their parent wings, but were spread over Air Force, Navy and civilian airfields under what was called the Detached Squadron Concept. However, under this concept, support organizations remained with the wing. Although the dispersal of flying units under the Detached Squadron Concept was not a problem when the entire wing was called to active service, mobilizing a single flying squadron and elements to support it proved difficult. This weakness was demonstrated in the partial mobilization of reserve units during the Berlin Crisis of 1961. To resolve this, ConAC determined to reorganize its reserve wings by establishing groups with support elements for each of its troop carrier squadrons at the start of 1962. However, as this plan was entering its implementation phase, another partial mobilization occurred for the 