Ukrainian President Volodymyr Zelensky warned airlines in a nightly video address that Russian airspace is 'effectively closing' as Ukraine escalates its drone strikes, saying the Russian sky is becoming 'completely dangerous.' ^[1] Ukrainian President Volodymyr Zelenskyy warned on Tuesday that Russian airspace is effectively closed due to the volume of Ukrainian drones in the sky. ^[2] Aviation risk advisory firm Osprey Flight Solutions said in an alert to clients that while most Ukrainian drone and missile strikes were likely to occur within 300km of the border, daily attacks deeper inside Russia were almost certain to continue this year, with a realistic possibility of increased frequency in the short term. ^[3] Data from Osprey Flight Solutions indicates there has been an average of 30 Russian airport closures per day since the war began. ^[4] Mark Brace, head of analysis at the aviation risk advisory firm Osprey Flight Solutions, stated that Ukraine has consistently launched more than 500 drones near daily, with multiple days exceeding 1,000 drones. ^[5] Russian President Vladimir Putin called Zelenskyy's comments a declaration of state terrorism. ^[6]