Azerbaijan on Sunday shot down another Armenian Su-25 fighter jet, according to the country’s Defense Ministry – the second Su-25 to be downed in as many days, Anadolu Agency reports.

The United Nations said Saturday that 50 countries have ratified a U.N. treaty banning nuclear weapons, paving the way for its entry into force on Jan 22, a move praised by anti-nuclear activists but opposed by the United States and other nuclear powers.

Over the past four years, as the United Kingdom has wrestled with the consequences of its narrow vote to leave the European Union, there has been little to no broader foreign policy debate in the country.