German Resettlement

I’ve chosen a random paragraph from the paper I edited. Which was partly about how the consequences of war are dealt with by the victors--how do they create treaties assigning borders and dictating the movement of people when the defeated party is not a signatory to the treaty. It was a frustrating assignment because it assumed a lot more knowledge than I have about the eastern and western borders of Poland before, during, and after the Second World War. By agreement with the author, I confined myself to copy editing. I had comments here and there on sentences that made no sense to me but, TBH, a lot of the paper made no sense to me. It needed a lot of organisational tinkering but that was beyond my remit, as they say here.

"We can note, however, that—as a realization of Germany’s international responsibility for the war—the supreme authority assumed by the Allied Powers resulted first of all, not from the treaty, but from the Berlin declaration, which did not have a treaty character. The successive treaties, declarations, and decisions were instruments of this responsibility. We should think that the decisions of the victorious Powers in 1945 are not subject to evaluation in light of the law of treaties. According to the International Law Commission, the legal consequences of treaties imposing certain obligations upon an aggressor state fail outside the principle laid down in article 35 of the Vienna Convention."
6-6