The flare-up on multiple fronts raised the risk of a return to all-out war, underscoring the difficulty of winding down a five-month conflict that has jolted the world economy.
President Donald Trump held closed-door meetings with Israeli Prime Minister Benjamin Netanyahu and Ukrainian President Volodymyr Zelenskyy at the White House before the world leaders paid their respects to the late Sen. Lindsey Graham. NBC News' Garrett Haake reports.