Greiser was involved in the resettlement of German refugees from lands annexed to the Soviet Union in 1939 and 1940. Between October and December 1939, nearly 60,000 "Volksdeutsche" (ethnic Germans) arrived in Germany from the Baltic states of Estonia and Latvia. Evidently Wilfried Strik-Strikfeldt (later employed as translator for General Andrey Vlasov) was in this group, as he "resettled" in Posen. Neighbouring "Gauleiter" and rival Albert Forster refused them entry, and they were largely settled in properties seized from Poles in Poznań and across the Wartheland. However even Greiser was wary, noting that many were elderly and urbanized aristocrats with a strong class consciousness, not the virile peasant warrior types idolized by the SS. Closer to his heart were the over 100,000 ethnic Germans who were evacuated from Volhynia and eastern Galicia. These were mostly farmers and rural people, and, learning from the Baltic experience, Łódź in eastern Wartheland was designated the main Volksdeutsche Mittelstelle (VoMi) reception centre. In May 1940 a further 30,000 Volksdeutsche were relocated from the Nazi General Government of Poland to Greiser's domain. After 1941 a further 300,000 ethnic Germans were evacuated from Russia and Ukraine to Wartheland during the German invasion and occupation of the Soviet Union. Greiser's Poznań was considered the Germanised city par excellence, and on 3 August 1943 he hosted a national gathering of "Gauleiter" and senior Nazis, including Martin Bormann, Joseph Goebbels and Heinrich Himmler.