Last month, at Policy Exchange, I met a charming, quiet American general called H.R. McMaster. In conversation, I was struck by his zeal for Nato and his concern wherever the alliance is now weakest, as in Turkey. In his speech to the thinktank, he said clearly that Russia and China are attempting to ‘collapse’ the post-1945 and post-Cold War ‘political, economic and security order’, with unconventional forces hiding behind conventional ones, subversion, disinformation, propaganda, economic actions and ‘proxies’ such as organised crime networks.