Uppsala Conflict Data Program (UCDP)

The UN doesn't track wars. Here's who does, how they define them, and what the numbers really show.

The data says we’re living in the most peaceful era ever, but it sure doesn’t feel like it.

We think the ancient world was a non-stop slasher flick, but is that because the boring, peaceful parts just didn’t survive?

Is the world truly more violent, or are we just more informed? Explore the data behind the global surge in conflict and the return of the "Big War."