DFC D'Kyr

The DFC D'Kyr was a Vulcan combat cruiser in service in the 22nd century. 

History
In March 2152, the Vulcan High Command dispatched the D'Kyr to retrieve Subcommander T'Pol and Doctor Phlox from the United Earth starship Enterprise after its mission had been cancelled. The D'Kyr observed helplessly when Enterprise was captured by the Suliban Cabal while en route.

The Earth Starfleet crew managed to free Enterprise from the Suliban and rendezvoused with the D'Kyr. 

With the founding of the United Federation of Planets in 2161, the DFC D'Kyr became a Federation starship of the Vulcan Space Council.