And all this has made me want to investigate London's prior appearances in the Trekverse!
http://memory-beta.wikia.com/wiki/London
Poor London went through hell in
Federation's version of World War III, becoming the home base of Colonel Green. It fared much worse in the
The Sundered, getting nuked early in their version of WWIII (contrary to Memory Beta's fudging,
The Sundered says a nuke detonated directly over the city)
The DTI's HQ is located in Greenwich.
And IIRC, a paper mache version of the city was in one of the old Gold Key comics. There was voodoo.
Anything else not covered here or in the Memory Beta article?