Overview

• Estonia says three Russian MiG-31s entered its airspace near Vainloo Island for about 12 minutes on September 19, publishing a flight path that showed no filed plans and disabled transponders.
• An emergency Security Council session is scheduled for 10:00 in New York on September 22, marking the first time in 34 years of Estonia’s UN membership that Tallinn has requested such a meeting.
• Poland reported two Russian fighters flew at low altitude over the Lotos Petrobaltic offshore platform’s safety zone, and police secured two new sites with suspected drone debris in the Mazovia region for investigation.
• NATO and EU officials condemned the actions as reckless and extremely dangerous, ISW assessed the pattern as probing allied defenses, and leaders in the Czech Republic and Poland urged a firm—potentially military—response.
• Ukraine’s General Staff recorded 156 combat engagements on September 21—49 on the Pokrovsk axis—with extensive Russian airstrikes and kamikaze drone use, and reported cumulative Russian personnel losses above 1,102,000.