Which turning point would best end an era called "interstate conflict"?

Militarized interstate disputes (MIDs) are conflicts between states that do not involve a full-scale war. A conflict is described as an MID if it causes fewer than 1000 deaths, and some military force is used. This can be as little as a military display of force with no deaths. I hope my answer has come to your help. God bless and have a nice day ahead!