What little competence there was left gradually drained away in the course of the UK’s temporary dalliance with the European Union, due to end next year, during which most of the rest of UK’s sovereignty was signed away by treaty, and most questions of international governance were relinquished to unelected bureaucrats in Brussels. And now, at the end of this long process of degeneration and decay, we have in the person of the Foreign Minister a clown by the name of Boris Johnson. His equally incompetent boss Theresa May recently saw it fit to very loudly and publicly violate the terms of the Chemical Weapons Convention to which the UK is a signatory.
https://www.paulcraigroberts.org/2018/03/16/killing-diplomacy-dmitry-orlov/