US
14 more cops wounded in attack; interior ministry yet to confirm whether the strike was by NATO aircraft
US officials said Turkish counterparts will not receive further shipments of F-35 related equipment
NATO was formed on April 4, 1949 by 12 countries alarmed by the Soviet Union's drive to spread communism
Trump has repeatedly railed against European alliance members for not spending enough on their own defence
Raises questions among NATO allies
NATO Sec Gen said it was a "historic day" which will lead to Macedonia becoming the 30th alliance member
Trump accuses European allies like Germany of not pulling their weight in terms of defence spending
Erdogan warns Turkey will not allow a terror corridor to be formed on its border by Kurdish separatists
US-Russia ties are under deep strain over accusations of Moscow's meddling in 2016 US presidential election
London blamed Moscow military intelligence for orchestrating poisoning of ex-Russian spy and his daughter