No, Not yet. I repeat for the third time:

"My question remains however: Even IF there are NK soldiers fighting in Russia, what would that change in the war?

Your point about "combat" soldier is moot. It all combat, Lester. My great uncle was in an artillery unit in WWI. If he just aimed the guns and didn't fire the gun he was still in combat. US, UK, and French soldiers aiming the missiles are in combat, even if they are not launching the missiles.