Praetorian Guard
The Praetorian Guard are Africa Theater British soldiers in SPEHSS.
They wear British-esque uniforms uniforms that are British and so naturally look rather classy and fucking manly as hell.
Apparently at some point in time the Praetorian's decided to do some fucking manly shit for the Empruh, so they went to an uninhabited world filled to the brim with orks with nothing but their bolt action flashlights and a handful of tallarn guardsmen to back them up. While this bravado makes even the Modian Iron Guard look like delicate flowers by comparison, needless to say the Praetorians lost a few major battles, but finally won victory at one last battle titled the "Battle of Big Toof River". Funny, sounds just like what happened to the British army in real life against the Zulus in Africa… Then again, I doubt GW would ever take a real life event AND/OR people and turn it into a board game idea… Cough cough Death Korps of Krieg and Germany cough cough…
Good luck finding original models for them these days though.
Aunt Vicky (Victoria Lamb) makes some awesome lookalike Praetorians (as well as Savlar Chem Dogs, Mordian Iron Guard, Drookian Fen Guard and, of course, the Spanish Inquisition). Check her webstore here.