A stacked bar chart from Our World in Data showing the rising number of state-based conflicts globally from 1946 to 2025.

A stacked bar chart titled 'Number of state-based conflicts, World' showing data from 1946 to 2025. The chart categorizes conflicts into Internationalized intrastate, Non-internationalized intrastate, Extrasystemic, and Interstate. The data shows a significant increase in internationalized intrastate conflicts in recent decades, reaching a peak of approximately 65 total conflicts by 2025.

Number of state-based conflicts, World Included are interstate, intrastate, and extrasystemic conflicts that were ongoing that year. Our World in Data Internationalized intrastate Non-internationalized intrastate Extrasystemic Interstate 70 60 50 40 30 20 10 0 1946 1951 1956 1961 1966 1971 1976 1981 1986 1991 1996 2001 2006 2011 2016 2025 Data source: Uppsala Conflict Data Program and Peace Research Institute Oslo (2026); geoBoundaries (2023) Note: Some conflicts affect several regions. The sum across all regions can therefore be higher than the global number. OurWorldInData.org/war-and-peace | CC BY