Iran launched a missile attack Monday on a U.S. military base in Qatar and Iraq, retaliating for the American bombing of its nuclear sites and escalating tensions in the volatile region. The following map shows where the U.S.’s other key military bases near Iran.

As of this month, the U.S. military had about 40,000 service members in the Middle East, according to a U.S. official.

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.

Few people inside the administration knew the president was moving forward with plans for the attack, even late last week.

President Donald Trump said the US would hold a meeting with Iran next week but cast doubt on the need for a diplomatic agreement on the country’s nuclear program, citing the damage that American bombing had done to key sites.

Speaking at the NATO summit in the Hague, President Donald Trump announced that US strikes on Iran had been ‘a tremendous victory’.