Out of all the countries that were in the war, Poland lost the highest amount of its people: over 6 million died, half of them Polish Jews. Poland also gave the most troops, after the US, the British and the Soviets, to ultimately defeat Nazi Germany. At the war's end, Poland's borders were moved west, pushing the east border to the Curzon line. The west border was moved to the Oder-Neisse line. The new Poland became 20% smaller by 77,500 square kilometeres (29,900 sq mi). The shift forced millions of people to move: Poles, Germans, Ukrainians, and Jews.