The Kremlin on Monday, Sept. 14, said that Russia would continue striking targets across the “whole” of Ukraine, after a rare Russian attack near the Polish border rattled Warsaw and its European allies.Russia has repeatedly attacked western regions of Ukraine since launching its full-scale invasion in February 2022, but strikes so close to Ukraine’s western borders are relatively rare.JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official.On Sunday, NATO-member Poland said that Russia had struck a railway locomotive inside Ukraine, about 2 kilometers (1.2 miles) from the countries’ shared border.“If I understand correctly, this is about Ukrainian territory,” Kremlin spokesman Dmitry Peskov said when AFP asked about the attack.“Our military is fulfilling their tasks on the whole territory of Ukraine. They will continue to do so,” he added.Western allies condemn attackOn Monday, NATO Secretary General Mark Rutte said that the strike on a Warsaw-bound train would not deter Kyiv’s Western backers from supporting Ukraine.“The strike on a passenger train in Ukraine yesterday shows how desperate Putin has become,” Rutte told journalists.“He thinks that he can stop us from supporting Ukraine and that he can undermine our unity. He is wrong. Our answer is to increase support,” he added.The British government also condemned the attack, saying it was intended to undermine international support for Ukraine.A spokesperson for UK Prime Minister Keir Starmer’s Downing Street office described the strike on the Warsaw-bound train as “a futile attempt by Russia to undermine our support for Ukraine.”