Turkey has said it will only agree to Finland and Sweden joining NATO if certain conditions are met, potentially threatening the defence alliance’s show of unity in its dealings with Russia. Turkey called on its NATO allies to support its fight against the banned Kurdish Workers’ Party PKK and the Kurdish YPG militia in Syria during a meeting of NATO foreign ministers in Berlin on Sunday, while also slamming several member states for restricting weapons exports to Turkey due to its fight against these same groups. Foreign Minister Mevlüt Cavusoglu said that Turkish public opinion was against a…