The following is a History-timeline of NAVSECGRU Todendorf, Germany 20 July 1956 - 1 May 1958 Naval Security Group Department, Todendorf - under a department head 1 May 1958 - 1 July 1960 Naval Security Group Detachment, Todendorf (Under Bremerhaven) - under an "officer in charge" 1 July 1960 - 13 April 1968 Naval Security Group Activity, Todendorf (Under Bremerhaven) - under an "officer in charge" 13 April 1968 - 15 May 1976 Naval Security Group Activity, Todendorf (Under CNO) - under a "commanding officer"