Tenth Sontaran Battle Fleet
From Tardis Wiki, the free Doctor Who reference
The Tenth Sontaran Battle Fleet was a Sontaran military unit commanded by general Staal. In the late 2000s, Staal saw to it that half of the motor vehicles on Earth converted to ATMOS (DW: The Sontaran Stratagem).
Other possibly non-canonical information
Group Marshall Nathan and his subordinate, who had gained entry to the TARDIS, also belonged to the Tenth Sontaran Battle Fleet. He came from a time period sometime after 2001 (DW: A Fix with Sontarans).
