You have discovered you’re wanted dead by an country committing warcrimes and who is capable of blowing shit up from a distance. Are you going to announce where you’ll be and when? How sure are you that they won’t kill you the moment you arrive or even in transport to the location?

Flip the switch and you’ve committed war crimes, arent you going to try to do the same to them?

Beyond that, no set time and place will simulate a side’s perceived strengths and their opponents perceived weaknesses. To do what you suggest would require both sides to agree, but one or both sides aren’t going to agree if it is at their advantage

Meaning, the only way this would be agreed is if:

• both sides can trust each other
• both sides perceive it as an equal match (or are actually equally matched)

At that point you might as well propose alternatives to killing each other (and bystanders)