The coalition led by the U.S. used strategic bombers B-52 in the framework of air strikes on Pro-government militias in the Syrian Arab Republic on the night of 8 February. About it told the head of Central command air force U.S. Lieutenant General Jeffrey Harrigan. He said that the Coalition had acted in "self time" and together with the Democratic forces of Syria (SDF) reflected " consistent unprovoked attack ". According to Lieutenant-General, "the hostile forces" used artillery and tank shells and rocket systems of volley fire and mortars. "We immediately contacted by telephone line with the Russian authorities to warn them about the unprovoked attack on the known position of the SDF and the coalition. After those calls Authorized coalition approved the strikes for the destruction of hostile forces ",