As the Ukraine crisis has developed and fears of a broader Russian military intervention have grown, the Organization for Security and Cooperation in Europe’s (OSCE) Vienna Document on confidence- and security-building measures and the Open Skies Treaty have been used to provide some transparency regarding Russian military activities.
Brookings Institution: The Vienna document, the Open Skies Treaty and the Ukraine crisis
The Organization for Security and Cooperation in Europe's Vienna Document on confidence- and security-building measures and the Open Skies Treaty have been used to provide some transparency regarding Russian military activities.
