They cant call it CH-UK because then it sounds like "CHUK-a Umunna". They are stuck with it. WP
How about Byron? Came across this the other day - it appears as a tattoo in Archer.
So is DJT calling out the FBI for treason and the naming the UK being involved, then theres the heads of ITA sec servies being fired. Now it turns out ITA fully involved - was it all run via Robert Hannigan, thats why he'll become a hh name. TBA.