ConflictStats

Ukraine › Sumy oblast › May 2026

Sumy oblast: conflict events in May 2026

Monthly report from UCDP event data for Sumy oblast, Ukraine. Country-wide report: Ukraine, May 2026.

20events21 the month before
29est. deathsrange 25–54
20civilian deaths

Sumy oblast, Ukraine saw 20 recorded events and 29 estimated deaths in May 2026. That is about the same as the previous month (21). The death toll range is 25 to 54.

100% of the month's events were state-based armed conflict. Civilian deaths: 20.

The most active pairing was Government of Russia (Soviet Union) - Government of Ukraine with 20 events.

Where events happened

2026-05-29: Government of Russia vs Government of Ukraine (1 deaths)2026-05-28: Government of Russia vs Government of Ukraine (2 deaths)2026-05-24: Government of Russia vs Government of Ukraine (1 deaths)2026-05-23: Government of Russia vs Government of Ukraine (1 deaths)2026-05-20: Government of Russia vs Government of Ukraine (1 deaths)2026-05-19: Government of Russia vs Government of Ukraine (1 deaths)2026-05-19: Government of Russia vs Government of Ukraine (1 deaths)2026-05-19: Government of Russia vs Government of Ukraine (2 deaths)2026-05-19: Government of Russia vs Government of Ukraine (1 deaths)2026-05-18: Government of Russia vs Government of Ukraine (3 deaths)2026-05-17: Government of Russia vs Government of Ukraine (2 deaths)2026-05-17: Government of Russia vs Government of Ukraine (1 deaths)2026-05-16: Government of Russia vs Government of Ukraine (3 deaths)2026-05-07: Government of Russia vs Government of Ukraine (1 deaths)2026-05-06: Government of Russia vs Government of Ukraine (1 deaths)2026-05-06: Government of Russia vs Government of Ukraine (2 deaths)2026-05-06: Government of Russia vs Government of Ukraine (1 deaths)2026-05-06: Government of Russia vs Government of Ukraine (1 deaths)2026-05-05: Government of Russia vs Government of Ukraine (2 deaths)2026-05-02: Government of Russia vs Government of Ukraine (1 deaths)
Recorded organized-violence events in Sumy oblast, May 2026. Circle size scales with estimated deaths.State-based Non-state One-sidedOutlines: Natural Earth.

Deadliest events, May 2026

DateWherePartiesEst. deaths
18 May 2026Sumy raion
Sumy oblast		Government of Russia vs Government of Ukraine
State-based		3
1–6
16 May 2026Sumy raion
Sumy oblast		Government of Russia vs Government of Ukraine
State-based		3
1–6
28 May 2026Okhtyrska raion
Sumy oblast		Government of Russia vs Government of Ukraine
State-based, 2 civilian		2
19 May 2026Shostkynskyi raion
Sumy oblast		Government of Russia vs Government of Ukraine
State-based, 2 civilian		2
17 May 2026Konotop raion
Sumy oblast		Government of Russia vs Government of Ukraine
State-based, 2 civilian		2
6 May 2026Sumy raion
Sumy oblast		Government of Russia vs Government of Ukraine
State-based, 2 civilian, 2 sources		2
5 May 2026Sumy oblastGovernment of Russia vs Government of Ukraine
State-based		2
2–21
29 May 2026Sumy raion
Sumy oblast		Government of Russia vs Government of Ukraine
State-based, 1 civilian		1
24 May 2026Sumy raion
Sumy oblast		Government of Russia vs Government of Ukraine
State-based, 1 civilian		1
23 May 2026Sumy raion
Sumy oblast		Government of Russia vs Government of Ukraine
State-based, 1 civilian		1

Parties

PartyEventsEst. deaths
Government of Russia2029
Government of Ukraine2029

All months

Monthly reports:Jul 2026Jun 2026May 2026Apr 2026Mar 2026Feb 2026Jan 2026Dec 2025Nov 2025Oct 2025Sep 2025Aug 2025Jul 2025Jun 2025May 2025Apr 2025Mar 2025Feb 2025Jan 2025Dec 2024Nov 2024Oct 2024Sep 2024Aug 2024Jul 2024

← Sumy oblast overview

Source: UCDP GED and Candidate Events, CC BY 4.0. See methodology.