An electricity substation in Donetsk was struck this evening, with FIRMS data indicating the attack was carried out by the Ukrainian army and reporting a subsequent fire. The incident occurred at approximately 11:15 PM UTC at coordinates 47.94640, 37.59473, according to a report from zarGEOINT. The strike on the Donetsk electricity substation marks a significant new development amidst ongoing tensions in Eastern Europe. This event follows reports from earlier today and yesterday regarding Russian drone incursions into Polish airspace, which Polish authorities have described as deliberate. Polish President Andrzej Duda discussed these violations with U.S. President Donald Trump on September 10th, 2025, reaffirming NATO unity. In related defensive actions, the Czech Republic announced its deployment of a 150-soldier helicopter unit to Poland to assist in defense against low-flying Russian drones, a move expected to commence within days. This deployment has broad political support in the Czech Republic. Meanwhile, in Poland, drone debris was discovered in Smyków, Kielce poviat, at approximately 19:00 UTC on September 10th, 2025, and fragments of a U.S.-made AIM-120C-7 missile were also recovered in Eastern Poland, likely from NATO aircraft intercepting drones. Earlier in the day, a residential building in Zaporizhzhia, Ukraine, was damaged by Russian strikes at 7:11 PM UTC on September 10th, 2025, injuring at least two people. Additionally, satellite images confirm damage at two points of the "8N" oil pumping station on the Druzhba pipeline near Nytopovychi, Bryansk region, following an attack on September 7th. Epirus also reported successfully neutralizing a swarm of 49 drones using electromagnetic interference.