Global deaths in organised conflict reached 244,600 in 2025, the second-worst toll since the Rwandan genocide, new data shows. Battlefield deaths barely moved — the rise came almost entirely from a 438% jump in the deliberate killing of civilians, concentrated in Sudan's Darfur region.
New estimates from the Uppsala Conflict Data Program (UCDP), published in the Journal of Peace Research on 9 June 2026, put global deaths in organised violence at 244,600 in 2025.1 UCDP's own account ranks that as the second-worst year since the 1994 Rwandan genocide, behind only 2022 — not the outright record some early coverage of the release suggested.14
The rise looks, at first glance, like a story about more war. Mostly, it isn't. Battle deaths in state-based conflict — fighting between governments and armed opposition groups, the category UCDP calls "battle-related deaths" — slipped slightly, from about 155,000 in 2024 to 153,600 in 2025.1 Deaths in fighting between non-state armed groups, such as cartels and militias, fell too, to their lowest level since 2013.1 Essentially all of the year's increase came from a third, distinct category: one-sided violence, UCDP's term for the deliberate killing of unarmed civilians by an organised armed actor. That toll rose 438%, from about 14,200 in 2024 to 76,500 in 2025 — on its own, more than the entire net rise in the global total.1
Almost all of the increase traces to a single event. On 26 October 2025, the paramilitary Rapid Support Forces — by then part of a coalition called the Sudan Founding Alliance (SFA) — captured the besieged city of El Fasher in North Darfur after an 18-month siege that had trapped roughly 250,000 civilians.1 UCDP's own assessment, built from satellite imagery and survivor interviews, put the toll at "at least 60,000" civilians killed by mid-December.1 The UN human rights office separately documented more than 6,000 killings in the offensive's first three days alone and said the real figure was undoubtedly higher.3 British MPs were briefed that at least 60,000 had been murdered.5
UCDP logged one-sided violence in 32 countries in 2025 and 55 responsible armed actors, the most it has ever recorded.1 Non-state actors, chiefly the SFA, caused 92% of those deaths; state actors caused the rest, their highest share since 2004.1 For the first time in a decade, the single deadliest one-sided-violence actor in UCDP's data was not Islamic State but the SFA.1 Away from Sudan, non-state violence overall kept falling — led by declines in Mexico and Brazil, where cartel fighting eased, though rising numbers of disappearances in both countries hint at possible undercounting rather than a genuine fall in lethal violence.1
State-based fighting, the more familiar kind of war reporting, was dominated by the same conflicts as in 2024. Russia and Ukraine's war remained the world's deadliest for a third straight year, at roughly 94,700 battle deaths — about 62% of the global state-based total — though down from 102,100 in 2024 as confirmed Ukrainian losses eased even as confirmed Russian losses kept climbing.1 Israel's war with Hamas caused an estimated 14,400 deaths, down a third on 2024 after two ceasefires. Battle deaths in Sudan's civil war itself — a separate tally from the one-sided-violence toll above — rose to about 12,200.1
The structural picture is starker still. UCDP counted 65 active state-based armed conflicts in 2025, the most since it began tracking in 1946, including a record eight conflicts fought between states rather than within them — the most since 1987, when there were five.1 Two of those, Russia–Ukraine and Iran–Israel, crossed the 1,000-death threshold UCDP calls a "war," the first time two interstate wars have run at once since 1987.1 The report's own authors note the run of interstate conflict has fed a live debate among foreign-policy commentators over whether the postwar, U.S.-anchored international order is fraying — a reading the fatality data can describe but not settle.1
UCDP revises its own figures as more information arrives; the 2024 state-based toll used here has already been revised upward once on new Ukraine reporting, and the authors flag further upward revisions to the 2025 data as likely.1 El Fasher's death toll is itself a floor, not a final count — access to the city has been restricted since the takeover, and UCDP, the UN and independent satellite analysis all describe their estimates as undercounts.13 And the precise, revised total for 2022 — the one year UCDP now ranks above 2025 since 1994 — has not been published; the widely cited figure of 237,000 is from UCDP's original 2023 release and predates later revisions.2