I want to know the answer to the following question:
Former German territory that lie east of the Oder-Neisse Line went under which countries administration?
All the background I'm provided with is that "Former German territory that lie east of the Oder-Neisse Line fell under either Polish or Soviet administration but attempts were made at least symbolically not to abandon sovereignty well into the 1960s.". Is that enough to answer the question?
Answer: yes