Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. US to Exit International Military Surveillance Treaty Ken Bredemeier WASHINGTON - President Donald Trump said Thursday he is pulling the United States out of the18-year-oldinternational Open Skies treatyallowing surveillance flights over other countries because Russiahas been violating it. The U.S. began notifying the other 33signatories to the accord that it was giving the required sixmonths' notice to leave. .