Military personnel from the 18th and 4th Engineer Regiments are constructing observation posts and reinforcing border crossings following a series of Russian drone strikes near the frontier. The troop deployment follows a September 13 attack where a drone hit a Kyiv-Warsaw train 2 km from the border and a jet-powered drone explosion near Yahodyn-Dorohusk on Thursday within 4 km of Poland. Border guards now wear helmets and body armor at designated shelters as crossings shift to a special operating regime.

Prime Minister Donald Tusk warned of intensifying Russian attacks on energy infrastructure by winter and stated that Poland is preparing for multiple security scenarios. The military scrambled fighter jets and suspended operations at Rzeszów and Lublin airports on Thursday after RCB alerts were issued for the Podkarpackie and Lubelskie voivodeships. Moldova reported a drone entered its airspace at 08:56 on Thursday and departed toward Ukraine two minutes later.