WASHINGTON, April 17 -- US President Donald Trump announced on Thursday that Lebanon and Israel had agreed on a 10-day ceasefire, as optimism grew that the Iran war may be nearing an end. Trump said in a social media post that the ceasefire would start at 5 p.m. EST (2100 GMT), aiming to halt a conflict between Israel and the Iran-aligned Lebanese group Hezbollah that was reignited by the U.S.-Israeli war against Iran. He said he had held "excellent conversations" with Israeli Prime Minister Benjamin Netanyahu and Lebanese President Joseph Aoun. "These two Leaders have agreed that in order to achieve PEACE between their Countries, they will formally begin a 10 Day CEASEFIRE at 5 P.M. EST," he said. "Both sides want to see PEACE, and I belie...