In the early months of 2022, as Russia’s full-scale invasion of Ukraine began, millions of Ukrainians — mostly women and children — fled to Poland, where they were met with an extraordinary outpouring of sympathy. Ukrainian flags appeared in windows. Polish volunteers rushed to the border with food, diapers, SIM cards. Some opened their homes to complete strangers. Three years later, Poland remains one of Ukraine’s staunchest allies — a hub for Western arms deliveries and a vocal defender of Kyiv’s interests. But at home, the tone toward Ukrainians has shifted.