February- May 1955 Operation TEAPOT conducted at Nevada Test Site, May-July 1956 Operation REDWING conducted at Eniwetok 21 May 1956 CHEROKEE Shot, first American airdrop of 1 September 1956 Activation of the 950th Test Group 27 November 1956 Joint Task Force SEVEN published planning schedule for Operation HARDTACK. --December 1956 Special Weapons Center began planning for and Bikini Atolls in Pacific, a megaton weapon, performed over Charlie Island, Bikini Atoll. (Nuclear). ultra high altitude shot of the HARDTACK series, 1 January 1957 29 April 1957 DE Air Defense Command began limited emergency ket capability. Preliminary “book message" constituting authority for Air Force commands tq begin initial planning for Operation HARDTACK ~ issued by Air Force headquarters, May-October 1957 Operation PLUMBBOB conducted at the 19 July JCHN Shot fired at the Nevada Test Site; 1957 Nevada Test Site, first live firing of an| nuclear warhead, 1 October 1957 air-to-air “TED Headquarters, Task Group 7. (Provisional), for Operation HARDTACK designated and organized at Kirtland, This action provided for two major subordinate units; Test Aircraft Unit, Provisional, at i: Kirtland, and the Test Base-‘Unit, Provisional, at Eniwetok, ix SWEH~2-003)