NATO is now involved. It has shot down an Iranian missile heading into Turkish airspace. Turkey is a NATO member housing a major U.S. military base where the U.S. has nuclear weapons, including B-61 thermonuclear bombs. NATO’s Article 5 says an attack on one member of the alliance is considered an attack on all.The United Kingdom has granted the U.S. access to its military bases for strikes on Iran. France is building a coalition to protect commercial shipping in the Strait of Hormuz, the Red Se...