MANILA: A key regional summit opens on Sunday in Manila, with Southeast Asian heads of state facing questions on trade, security and an ongoing energy crisis while playing host to a who’s who of global leaders. US President Donald Trump is scheduled to arrive on Tuesday near the summit’s conclusion, a visit expected to include a sideline meeting with fellow Quad countries India, Japan and Australia — the first of his second term. The meeting of the Quad — a grouping broadly aimed at counterbalan
