Videos captured possible missiles in the sky over Doha after Iran says it launched a retaliatory strike against the Al Udeid Air Base, which stations thousands of U.S. troops. Qatar confirmed the strike and said there were no casualties.

Good morning. Iran launches limited retaliatory strikes at a US base in Qatar. Copycats derail a slimming-shot alliance. And monied millennials are calling time on the 60/40 portfolio. Listen to the day’s top stories.

The Pentagon already had begun taking measures to strengthen its firepower in the Middle East and protect U.S. bases there.