The United Arab Emirates is threatening to pull out of a $23 billion deal to buy American-made F-35 aircraft, Reaper drones and other advanced munitions, the Wall Street Journal reported on Tuesday.
The Gulf ally complained that US security requirements were too onerous, the report said, citing American officials.
F-35 contractor Lockheed Martin Corp, the US State Department and the UAE foreign ministry did not immediately respond to a request for comment.