The number of interstate conflicts fell after the Second World War

Global rate of interstate conflict* by level of hostility, 1864-2014

*Number of conflicts by number of state pairings. This takes into account the changing number of states over time.
Chart: pturSource: Gibler and Miller - Militarized Interstate Events (2023) Correlates of War - State System Membership (2017) – with major processing by Our World in DataGet the data