After an attack on Naval Air Station Pensacola by a Saudi military aviation student that resulted in multiple casualties, the United States has temporarily paused all flying by Saudi aviation students. According to reports, this affects more than 800 students nationwide, although they are permitted to continue attending classroom training.
Defense Secretary Mark Esper reportedly has also ordered a review after the Pensacola shootings.
Details: News report, https://www.bbc.com/news/world-us-canada-50737561