Trump's announcement came just hours after Iran launched missiles against a U.S. air base in Qatar, causing no casualties, in retaliation for the U.S. dropping 30,000-pound bunker-buster bombs on Iranian underground nuclear facilities over the weekend.

DUBAI, United Arab Emirates (AP) — Iran launched a missile attack Monday on a U.S. military base in Qatar, retaliating for the American bombing of its nuclear sites. Witnesses reported seeing missiles in the skies, followed by explosions, but it wasn’t clear if there was any damage.