 The departure of the 355th left McConnell with only a single wing, and base support responsibilities were transferred from the division back to the 23d Wing.At the beginning of 1966, the division's remaining wing, the 23d, added the mission to train F-105 aircrews, primarily for duty in Southeast Asia.After seven months with only a single wing assigned, the 75th Tactical Reconnaissance Wing, located at Bergstrom Air Force Base, Texas was assigned to the division.