There are a number of books about the ethnic cleansing of the Germanic persons, from Romania, Hungary, Yugoslavia, Poland, Belorus, Czechoslovakia, and Bulgaria.
"Orderly and humane" RM Douglas
That's what I would read. This is a recent (10 year) discussion.
GENOCIDE of the Ethnic Germans in Yugoslavia 1944-1948
http://arno.daastol.com/books/GENOCIDE%20of%20the%20Ethnic%20Germans%20in%20Yugoslavia%201944-1948%20(2007).pdf?fbclid=IwAR1QwmttUYlTV_nhUO9NYYOAYJ4tUNuL1zUNL48UITwLmUIAijJ2o3vxNRQ
This is a free .pdf published by the Donau Schwaben Association of the USA
It was planned in Yalta. In Yalta, Stalin demanded forced labor from German peoples after the war. MILLIONS of persons of Germanic heritage were taken to Russia esp Ukraine to work in mines and farms. Many stayed there for 5-6 years, and many thousands were killed. There were hundreds of concentration camps. Yugoslavia was one of the worst places. Thousands of Germanic persons who had been in Yugoslavia from 1785 (like my relatives) were given 1 hour to pack a suitcase, and then were driven out. Some were put in camps (Gakowa) which were death camps just like the Jews were put in. '
Millions of Germanic persons (12,000,000-14,000,000) were sent away from the MittelEuropa nations on the same cattle cars, under the same conditions, that the Germans used for Jews and Gypsies. My mom's aunt died in 1950 in a camp.
This is not known by most in the US and the UK. That's because many still hold all Germanic peoples at fault for WWII.