https://www.defenseone.com/technology/2019/10/why-open-skies-old-fashioned-treaty-worth-keeping/160496/?oref=d-channeltop Both Republican and Democratic lawmakers have expressed alarm about reports that the Trump administration may abandon the Open Skies Treaty. Put into effect in 2002, it allows the United States, Russia, and 32 other countries to conduct short-notice flights over one another’s territories to monitor military deployments.