Hours after five Arab countries broke diplomatic relations with Qatar , a crucial United States ally, Secretary of State Rex W. Tillerson offered on Monday to broker the impasse in hopes of preserving the Trump administration’s efforts to create broad coalitions against Iran and terrorist groups in the Middle East. “We certainly would encourage the parties to sit down together and address these differences,” Mr. Tillerson said. “If there’s any role that we can play in terms of helping them address those, we think it is important that the G.C.C. remain unified,” he said, adding a reference to the Gulf Cooperation Council, a group of Persian Gulf countries. The remarks by Mr. Tillerson, who is in Australia with Defense Secretary Jim Mattis, came on the heels of dramatic announcements by Bahrain , Egypt , Saudi Arabia , the United Arab Emirates and Yemen that they were […]