In england? Nothing.. never where, they where infested with snitches and secret police from the start, mostly all show no action too (regardless of the hype searchlight gave them), most leaders are in jail or where and now dropped out. There is a group of weaponcollecting no bodys that claim to be their heirs called "blood&honour-racial volunteer force" but they can't organise a piss up in a brewery either.
There are some continental european groups that use the c18 name, most notably in belgium, eastern europe and the balkans that actually shown they are willing to do the aryan terrorist thing but they too are often neck deep in informants so your avarage "drink beer, sniff dope and go out to stab & boot migrants to death" blood&honour-traditional bonehead is in general a far more effective "terrorist"...
The mind is its own place, and in itself Can make a Heaven of Hell, a Hell of Heaven. What matter where, if I be still the same, And what I should be, all but less than he Whom thunder hath made greater?
Here at least We shall be free