A special effort should be made to crowdsource the identifications of each of the war criminals parading and assaulting the POWs. The identifications should then be used to prosecute, convict, punish, and perhaps execute, when justified, the identified war criminals.
After a little more research, it seems the prisoners “paraded” were “Paramilitaries”, (Right Sector “irregulars”, Kolomoisky “privateer” troops, and National Guard), and supposedly not covered by the Geneva Convention. No regular Ukrainian troops were paraded, supposedly.
The use of organized paramilitaries in conjunction with regular military forces is itself a violation of the Geneva Convention, as well.
Apparently this was supposed to be a “recreation” of Stalin’s 1944 march of German Prisoners through the streets of Moscow, with the streets washed behind them.
IMO, it was meant as an insult to Kiev, (especially Right Sector and Kolomoisky), and to anger them. (The older guy in the front row, left, is thought to be one of Kolomoisky’s commanders)
You can parse it any way you like, but the parading of distressed prisoners is against International norms, and both sides have done it, prime example being the Right Sectors Tweets showing photos of prisoners about to be executed summarily, in front of the trench they are to be buried in, as Amnesty pointed out.