The Ledger · Entry 37

Are fewer people dying in wars?

Yes. Best estimate of deaths of combatants and civilians in the world's state-based armed conflicts each year was 550,676 in 1950. By 2025 it was 153,643. Data retrieved 2026-08-22.

Battle deaths worldwide have fallen since 1950

550,676 in 1950
153,643 in 2025

Data: Our World in Data, based on the Uppsala Conflict Data Program and the Peace Research Institute Oslo

The Uppsala Conflict Data Program and the Peace Research Institute Oslo have tracked deaths from fighting in the world's armed conflicts back to 1946, counting a conflict once it kills at least 25 people in a year. The years right after the Second World War were already violent, with wars underway in China, Indonesia, and Indochina. The toll peaked in 1950, the year the Korean War began, at 550,676 deaths, the highest single year in the series.

Best estimate of deaths of combatants and civilians due to fighting in state-based armed conflicts worldwide, in the year the conflict was ongoing, 1946 to 2025: from 296,386 to 153,643. Source: Our World in Data, based on the Uppsala Conflict Data Program and the Peace Research Institute Oslo. 550,676 1950 12,437 2005 153,643 2025
Source: Our World in Data, based on the Uppsala Conflict Data Program and the Peace Research Institute Oslo · CC BY 4.0 · retrieved 2026-08-22. Underlying data: Uppsala Conflict Data Program (UCDP), Georeferenced Event Dataset, 1989 onward; Peace Research Institute Oslo (PRIO), Battle Deaths Dataset, 1946 to 1988.

The key rows

1950 550,676 The highest single year in the series, as the Korean War began.
2005 12,437 The lowest point in the series.
2022 284,981 The highest toll in fifty years, as war returned to Ethiopia and Ukraine.
2025 153,643 The most recent year in the series.

The decline since then has not been steady. The total fell to a low of 12,437 in 2005, the quietest year in the series, before climbing again as war returned to Ethiopia and Ukraine: the 2022 toll of 284,981 was the highest in fifty years. By 2025 the count stood at 153,643, well below the mid-century peak but still far above the 2005 low.

Asked often

Have battle deaths been falling?

Yes, over the long run. The best estimate for deaths in the world's state-based conflicts fell from 550,676 in 1950 to 153,643 in 2025. The decline has not been steady: the toll rose again after 2020, reaching 284,981 in 2022, the highest in fifty years, as war returned to Ethiopia and Ukraine.

What counts as a battle death in this data?

UCDP and PRIO count deaths of combatants and civilians from fighting once a conflict kills at least 25 people in a calendar year. This covers wars between states, civil wars, and colonial conflicts, but not homicide or one-sided violence against civilians outside those conflicts.

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