There is a lot of question regarding the super-secret U.S. Army unit like the one why is it called 1st Special Forces Operational Detachment-Delta if it’s not part of the Army Special Forces?
Since it was created, its existence never has been confirmed officially. Throughout history, it was referred simply as the Unit, The Dreaded D and most publicly know as Delta Force. But, today, it’s not so secretly anymore despite it is never officially confirmed, there are some books written by former officers and operators who revealed a lot of things.
Since its creation, it had one official name which was referred through the documents. 1st Special Forces Operational Detachment-Delta (1st SFOD-D) is the name mostly used in official interactions. But, why Delta and not Alpha or Bravo? Why is it called 1st Special Forces Operational Detachment-Delta if it’s not part of the Army Special Forces? The answer to this question is quite simple.
The U.S. Army Special Forces at the time had Alpha, Bravo, and Charlie detachments. For operational security, Colonel Charles Beckwith, first Delta commanding officer decided to name the new unit the “1st Special Forces Operational Detachment – Delta.”
Since then it has had several names including Combat Applications Group or CAG, Delta Force, “The Unit”, or, as of late, “Army Compartmented Elements”/“ACE” and I’m sure many others. It is not part of the 1st Special Forces Command which is the higher headquarters for Army Special Forces Groups, Civil Affairs, etc.
Delta Force book
Charles Beckwith, the first commanding officer of the 1st SFOD-D has written a book Delta Force: A Memoir by the Founder of the U.S. Military’s Most Secretive Special-Operations Unit. In the book, he exposed the whole process and early history of the Delta Force.