President Donald Trump told ABC News on Tuesday morning he is "not happy" with either Israel or Iran after the opening hours of a nascent ceasefire between the two combatants were marred by reported exchanges.

In a 48-hour whirlwind, President Donald Trump went from elated to indignant to triumphant as the fragile Israel-Iran ceasefire agreement came together, teetered toward collapse and ultimately coalesced.

Trump spent his final day at NATO disputing intelligence that said U.S. strikes on Iran's nuke facilities set the country back only by months.