Londons trafalgar square Christmas tree is traditionally given by which country?
Christmas ceremony There has been a Christmas ceremony every
year since 1947. A Norway Spruce (or sometimes a Fir) is given by
Norway's capital Oslo and presented as London's Christmas Tree, as
a token of gratitude for Britain's support during World War II
http://www.answers.com/topic/trafalgar-square?method=26&initiator=WANS#Christmas_ceremony