An enemy unmanned aerial vehicle (UAV) was detected in the northern Kharkiv region, moving south, with potential air defense activity occurring in the area, according to a report from the Air Force of the Armed Forces of Ukraine. The exact timing of this detection falls within the reporting window of 9/20/2025, 10:35:20 PM to 9/20/2025, 11:35:20 PM UTC. Separately, concerns were raised regarding the Pentagon blocking certain arms sales to Europe due to identified short supplies of some weapons. A social media post cited reports that this hold risks weakening European defenses during a period when Russia poses an imminent threat, quoting Pentagon officials who are allegedly omitting substantial context about munitions requirements and acquisition objectives. The post also highlighted that Europe manufactures indigenous long-range surface-to-air missile systems, such as SAMP/T. These developments follow previous reports from September 20th detailing Ukrainian drone activity near Novodonetsk and in the Crimea region. Earlier reports also indicated Ukrainian forces conducted drone attacks targeting Russian vessels on the Dnipro River on September 20th, employing anti-aircraft FPV drones against Russian boats carrying infantry.