Poland closed all its border crossings with Belarus and deployed up to 40,000 troops to border regions on September 12th, 2025, following extensive drone activity over Ukraine and Poland, and reported cyberattacks targeting Russian drone networks. The SBU reported that Russia's key oil port, Primorsk, is "broken" and unable to sell oil, and the Smolensk Nuclear Power Plant's working unit No. 3 was attacked overnight. Over the past hour, reports indicate that the "Russian Hackers to the Front" group and frontline operators have experienced a compromise of their drone network by an unknown cyber actor, according to OSINT analysis. This follows earlier reports from the night of September 11th to 12th, 2025, where Polish Foreign Minister Radosław Sikorski stated that 19 Russian drones traversed Polish airspace, and approximately 400 drones and 40 missiles flew over Ukraine. Sikorski emphasized these were not accidental incursions. In the Toretsk direction, a "Vampire" strike drone crew is operating amidst rubble, targeting damaged enemy equipment. Separately, there are reports of former individuals coming to the Chernihiv region and Novgorod-Siversky. The Russian cargo plane Il-76MD CANDID RA-76370 NKP8371, previously reported to have flown over Ukrainian airspace between 8:16 AM and 8:46 AM UTC on September 12th, 2025, has had its trajectory and intent debated, with some sources suggesting it was a provocation to elicit radar responses rather than a direct overflight of Ukrainian territory. Earlier in the reporting period, drone strikes targeted Russia's largest oil-loading port, Primorsk, causing a fire at an oil loading point, confirmed by the Leningrad governor. Drone strikes were also reported in Polish airspace during this period. Russian President Vladimir Putin reportedly views these drone attacks as an 'air defense test' that encourages further action, according to the Financial Times. NATO Secretary General Mark Rutte and Supreme Allied Commander Europe General Alexus G. Grynkewich are scheduled to hold a press conference at NATO Headquarters at 17:00 UTC today amid these escalating European tensions.