VOA英语视频：难民涌入、武器流出：波兰在乌克兰战争中发挥前沿作用

For the past year, Poland has led the refugee response as millions of Ukrainians fled the Russian invasion. Meanwhile, Poles are having to adjust to the large-scale warfare taking place on their doorstep. As Henry Ridgwell reports from the border, that conflict spilled over into Poland late last year. Camera: Henry Ridgwell