Muwaffaq Salti Air Base, northern Jordan
The funding, included in the Pentagon budget passed by Congress last week, highlights the growing importance of Jordan as the U.S. military makes plans in a neighborhood of unpredictable partners.
Muwaffaq Salti Air Base, positioned near Jordan's border with Syria and Iraq, has played a key role for the U.S. in its battle against the Islamic State group. But the base, according to the Air Force, has been overwhelmed by the pace of operations. Fighter-bombers from other nations involved in the conflict, such as Belgium and the Netherlands, also have operated from its twin runways.
Air Force budget documents say the facility has limited ramp space to launch combat sorties, has "zero dedicated space to support cargo and personnel recovery operations" and is operating at "four to five times what the space was originally intended to support."
Troops operating at the Azraq base now face "extreme life, health, and safety risk" because living areas are within range of explosives from operational areas.
"To alleviate these risks, to support the influx of personnel, and to provide adequate facilities for a contingency operations population, a new LSA (Life Support Area) to include supporting facilities and infrastructure are required," Air Force documents said.
Since the Air Force's initial budget request, combat operations in Iraq and Syria have slowed dramatically, with fewer air strikes as ISIS-held territory evaporates.
Al-Udeid military base in the middle of the desert south of Doha, Qatar
During the past year, tensions among Gulf states have flared and longtime U.S. bases have been caught in the middle.
In June, Saudi Arabia and other Arab states cut ties with Qatar, home to the Al Udeid Air Base, out of which the U.S. has run much of its war against ISIS.
Trump, who at the time backed the Saudi campaign to pressure Qatar over accusations of ties to terrorist groups, said the U.S. would find alternatives to Al Udeid if necessary.
"If we ever have to leave (Al Udeid) we would have 10 countries willing to build us another one, believe me, and they will pay for it," Trump said in a radio interview at the time.
Defense Secretary Jim Mattis later clarified that the U.S. has no intention to replace Al Udeid.
Comment: It is unlikely that we'll see the US leave Qatar without a fight or a fuss, but it is increasingly likely that they will leave nonetheless.
The Americans have been there since 1996 when the $1 billion secret base was built. The Pentagon then 'unveiled' it following 9/11. Today there are some 11,000 US troops based at Al-Udeid.