Russian drones are threatening the safety of Ukrainian, US, and European officials traveling to and from Kyiv. On September 13, a Russian drone attacked a train locomotive in Ukraine near the Polish border, with European officials, including former UK Prime Minister Boris Johnson, on board. Polish Prime Minister Donald Tusk warned that Russia is expected to undertake "very intensive actions" that could "escalate and affect Polish territory." Additionally, on September 8, a Russian drone entered Moldovan airspace, causing a delay to Ukrainian President Volodymyr Zelenskyy's flight. Kremlin Ambassador Miroshnik stated that these attacks are aimed at preventing Western military aid from reaching Kyiv.