I found this on Wiki and was trying to think what it reminds me of.

"It was the stated policy of the Nazis to kill, deport, or enslave the Polish, Ukrainian, Russian, and other Slavic populations, whom they considered inferior, and to repopulate the land with Germanic people.[2][3][4] The entire urban population was to be exterminated by starvation, thus creating an agricultural surplus to feed Germany and allowing their replacement by a German upper class.[2] The policy of Lebensraum implicitly assumed the superiority of Germans as members of an Aryan master race who by virtue of their superiority had the right to displace people deemed to be part of inferior races.[3] The Nazis insisted that Lebensraum needed to be developed as racially homogeneous to avoid intermixing with peoples deemed to be part of inferior races.[3] As such, peoples deemed to be part of inferior races living within territory selected to be Lebensraum were subject to expulsion or destruction.[3] Nazi Germany also supported other nations' pursuing their own Lebensraum, including Fascist Italy .[5]"