The official definition specifies “foreign country”.
And that doesn’t apply to them.
All soldiers get paid, even ours.
I don’t care. The Wagner Group are mercenaries and so are the Chechens. They deserve to be shot on sight. Even if they surrender.
See, if your prick Russian friends want to kill prisoners of war then so can the Ukrainians.
Any Russian soldier...even in uniform...who sports a swastika tattoo, runes, or other Nazi iconography should be subject to execution...because that’s the precedent Russia has set and should be made to live by.