https://www.youtube.com/watch?v=popbL1JuGqM
I have just recently realized that a major mission of the British Army and Marine Corps, is to entertain the tourist in London.
For perspective, The U.S. Marine Corps is larger than the entire British Military, Royal Navy, RAF and Army, combined.
Cheers
Btw, https://www.youtube.com/watch?v=qDRVTES_gI8