The US is to spend billions of dollars upgrading 150 nuclear bombs positioned in Europe, although the weapons may be useless as a deterrent and a potentially catastrophic security liability, according to a new report by arms experts.
The threat to the base posed by Islamic State militants was considered serious enough in March 2016 to evacuate the families of military officers.
During a coup attempt four months later, Turkish authorities locked down the base and cut its electricity. The Turkish commanding officer at Incirlik was arrested for his alleged role in the plot.
A report on the future of the B61 bombs by arms control advocacy group the Nuclear Threat Initiative (NTI) , made available to the Guardian, said the 2016 events show “just how quickly assumptions about the safety and security of US nuclear weapons stored abroad can change”.