By Andrew Mills, Parisa Hafezi and Alexander Cornwell DOHA/ISTANBUL/TEL AVIV (Reuters) - Iran's military said on Monday it had carried out a "devastating and powerful" missile attack on the Al Udeid U.

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

It remained to be seen whether the attack would ignite a regional war or provide the U.S. and Iran with an off-ramp from their intensifying confrontation.