A British Anwar al-Awlaki Scenario? UK Targets British ISIL Member, in Syria, on an Imminent/Continuous Threat Theory
BBC News has the details here. To be clear, the novelty here is not British involvement in the use of lethal force against an ISIL target, nor simply the fact that a British citizen (Reyaad Khan of Cardiff) was the target of the carefully-planned strike (which also killed another British ISIL member, Ruhul Amin, among others). The novelty, instead, was the location of the attack (Syria) and the resulting invocation of what looks very much like the US government's imminent/continuous-threat self-defense theory.