Nato’s wargames on the London Tube are exciting and evoke images of the blitz, but the alliance has not got the tools it needs to win, explains world affairs editor Sam Kiley W hile Moscow displays its nuclear weapons in public exercises designed to intimidate Ukraine and rattle Kyiv’s allies, Nato’s response is to scuttle underground and thumb its nose at the Russian bear. The scenes of a British-led headquarters for the alliance’s attack dog, the Allied Rapid Reaction Corps, setting up beside