at least large scale wars. They're bad for business, so the mega corps say 'no' whenever anyone wants to start one up these days.
What you might be looking for is a way to end occupations and large scale violence. Iraq and Afghanistan aren't wars. What's going on in Mexico isn't a war. There's no single combatant to subdue. There's no legitimate government organization to fight. etc, etc. If you want that you have to deal with poverty. People with good economic options don't become terrorists or a drug lord's foot soldiers. Good luck with that though. I don't see a way to fix the economies of places like Mexico, Iraq and Afghanistan with how much money people make off them being shit holes. Private prisons, defense contract profiteering, and the ability to use these "wars" to keep a lid on progressive politics all mean the powers that be want the status quo to go on...