Gauleiters Albert Forster and Arthur Greiser reported to Hitler that 10 percent of the Polish population contained "Germanic blood", and were thus suitable for Germanisation.[32] The Reichskommissars in northern and central Russia reported similar figures.[32] Those unfit for Germanisation were to be expelled from the areas marked out for German settlement. In considering the fate of the individual nations, the architects of the Plan decided that it would be possible to Germanise about 50 percent of the Czechs, 35 percent of the Ukrainians and 25 percent of the Belarusians.