To answer the forum post/question; YES, the US Army Delta Force was disbanded.
Former SECDEF; Donald Rumsfeld, folded the spec ops unit; Delta Force & converted it over to the US DoD(department of defense).
The new spec ops unit(still made up of mostly US Army airborne Rangers & SF qualified troops) is now called ACE.
This unit identifier(a military way of saying name) may change soon too.
Thanks for playing,