Cloudkill?

My players are always quick to point out that Geneva doesn't exist in our fictional world

They drew a red cross on something?

I have to find some way to do this in my current campaign. I'm a barbarian though so as a bonus action might be a stretch

Had to reopen this post to comment on your comment. Delayed fuse on that one

Its Geneva checklist!

Path of the Berserker can use their bonus action to attack as early as level 3.

I'm a totem loser so I will have to think of some way to do it with my dash, haha

Pungee pits with chemical-releasing anti-personnel mines attached to the ends of the spikes, in front of a fake medical aid station manned by soldiers in scrubs.

It’s not a war crime if no one has passed a law against it… Also, if you make it to level 20, who exactly is going to hold you accountable anyway?

Robert Anton Wilson?

Found the Canadian.

Rule As Written

If you're a Minotaur, there would be a way.

Elminster?

Our party is named The Geneva Convention. Checkmate, lawyers! The only thing the Geneva Convention has rules against is violating the Geneva Convention.