Turkish President Recep Tayyip Erdogan has again insisted he will go through with the purchase of S-400 defense systems from Russia and will also cooperate with Moscow on producing S-500 systems in the future, despite U.S. pressure against the deals.

Taliban and American military officials have taken to social media to accuse each other of acting against peace building efforts in conflict-torn Afghanistan.

President Donald Trump has given a strong warning to Iran, threatening its destruction if it attacks the United States or U.S. interests.