Aye, the Minsk 125 is a Russian derivative of a WW2 German 125, same as the Bantam is a British one. So, they are both part of war reparations.
Here's some more useless info on Russian motorcycles. There is no such make as Cossack or Neval. They are the names of different importers of Russian bikes into the UK. The way the ruskies did it was, for example, all 125s were made in Minsk, all 175s were made in Voskhod, all 350s were made at the IZH factory, all 650 flat twins were made in Irbit, at the foot of the Urals, or in Kiev, on the Dnepr river. So when someone says they have a Cossack or a Neval, it can be any of the above makes. Just to confuse matters, a Soviet Knight was just Nevals marketing name for a Dnepr. So, now you can all bore your friends and family tears, as I do regularly