At the risk of sounding snooty....which I am not.....really.....the USN effort almost equals the entire number of ships in the active RN Fleet doesn't it?
So what? Comparing apples and oranges a bit. Compared to nearly every military on the planet the US have more in one arm etc than country XXXXXX has in the entire fleet / army / navy.
collbar - many very good reasons to recce - I'd not want to deploy anyone without it.