The US administration has offered to sell $3.5 billion worth of Patriot missiles to Turkey, apparently in an effort to stop Ankara from going ahead with a planned S-400 deal with Moscow. The Turks will probably shrug off the offer (after making sure it’s not an offer they can’t refuse). For reasons largely unrelated to its military requirements, Ankara has no intention of scrapping the S-400 deal and risking its geostrategic bonds with Moscow.