Iran launched multiple missiles against an American military base in Qatar on Monday in retaliation for the U.S. strike on its nuclear facilities this weekend. No casualties were reported, and both Qatar and the Trump administration were made aware of the Iranian attack ahead of the time, sources tell Axios.

What to Know about Al Udeid Air Base in Qatar. About 10,000 troops are stationed at the base, which serves as the regional headquarters for the U.S. Central Command.

United States Air Force The U.S. has nearly 40,000 military personnel in the Middle East. The U.S. Fifth Fleet is in Bahrain and has 28,000 military personnel in Kuwait, Bahrain, and Qatar. Kingdoms, including Qatar, cover 60 percent of the costs, around $650 million.