Commander Fox led the Coruscant Guard, an elite clone trooper unit assigned to serve as peace-keepers on the Galactic Republic capital. Like every other clone trooper in the Guard, Fox was bound by honor and duty to protect and serve the Supreme Chancellor and the members of the Galactic Senate. Utterly fearless, he was always the first to lead the charge into battle, even in the most perilous combat situations. His exemplary performance has made him one of the most highly decorated soldiers in the Republic army.
The clone troopers tasked with protecting Coruscant and the Galactic Senate are among the best and the ones most fervently loyal to Chancellor Palpatine...which is saying quite a bit.
An increasingly common sight in the centers of power of the Galactic Senate were the Coruscant Guard, which were also ominously known as shock troopers for their intense focus and lightning-fast response.
Clone Commander Fox led the raid on Ziro the Hutt's Coruscant den that led to his arrest, and the rescue of Senator Amidala.
When Ahsoka Tano was wrongly accused of murdering Letta Turmond, Fox expressed admiration for her initiative. But his opinion quickly turned when he came to believe that Ahsoka was a clone-killer.
To Fox's mind, Letta Turmond was the worst kind of criminal -- a traitor who dishonored the Republic.