- Russia will withdraw from an international treaty allowing observation flights over military facilities following the US exit from the pact.
- The treaty was intended to build trust between Russia and the West by allowing the accord's more than three dozen signatories to conduct reconnaissance flights over each other's territories to collect information about military forces and activities.
- US President Donald Trump had declared Washington's intention to pull out of the Open Skies Treaty in May, arguing that Russian violations made it untenable for the United States to remain a party. The US completed its withdrawal from the pact in November.