Eastern Europe Military Deployments

This page covers publicly reported military deployments in Ukraine, Russia, Belarus, Poland, Romania, the Baltic states, the Baltic Sea and the Black Sea. It lists foreign forces sent to the region, force movements within it and major exercises, each with its deploying country, status, date and sources.

Deploying	Host or area	Branch	Forces and personnel	Status	Date	Verified	Sources
Russia	Ukraine	🚢 Naval forces	Russia: Elements of the 120th Naval Infantry Division, 40th Separate Naval Infantry Brigade and 90th Tank Division to Oleksandrivka direction, Ukraine, to defend against Ukrainian counterattacks Not stated	Confirmed active	Oct 25, 2026	Oct 25, 2026	ISW
Germany	Estonia	🪖 Ground forces	Germany: 4th Logistics Regiment convoys (Brave Blue 26 exercise) to Estonia Not disclosed	Confirmed active	Oct 21, 2026	Oct 21, 2026	ERR News
Ukraine	Ukraine	🪖 Ground forces	Ukraine: Operation Vivaldi counteroffensive forces to Donetsk region At least 277 sq km liberated, per ISW Confirmed figure	Confirmed active	Oct 21, 2026	Oct 21, 2026	ISW
Russia	Ukraine	🪖 Ground forces	Russia: Elements of the 41st Combined Arms Army to Toward Serhiivka, southwest of Dobropillya, Ukraine Not stated	Confirmed active	Oct 21, 2026	Oct 21, 2026	ISW
Russia	Ukraine	🪖 Ground forces	Russia: 5th Tank Brigade, 37th and 64th Motorized Rifle Brigades to Hulyaipole direction, Zaporizhzhia region, Ukraine Not stated	Confirmed active	Oct 21, 2026	Oct 21, 2026	ISW
Sweden	Poland	🛡️ Air and missile defense	Sweden: Patriot air-defense unit to Poland About 100 troops Estimate	Announced or pending	Oct 6, 2026	Oct 6, 2026	Euronews
United States	Poland	🪖 Ground forces	U.S. troops in Poland About 10,000 (expected level) Official announcement	Confirmed active	Jul 9, 2026	Jul 9, 2026	Polskie Radio: U.S. troop levels in Poland to return to 10,000 within weeks (July 9, 2026)
Turkey	Azerbaijan	🏳️ Joint or multiple branches	Turkish Task Group Command in Azerbaijan Not disclosed	Confirmed active	Apr 16, 2026	Apr 16, 2026	YetkinReport, citing Turkish Ministry of National Defence sources (Apr. 16, 2026)
North Korea	Russia	🪖 Ground forces	North Korea: about 11,000 troops (about 10,000 combat, 1,000 engineers) Not disclosed	Confirmed active	Feb 13, 2026	Feb 13, 2026	The Kyiv Independent
France	Estonia	🪖 Ground forces	French troops with NATO in Estonia 350 Official announcement	Confirmed active	Apr 22, 2025	Apr 22, 2025	French Ministry of the Armed Forces: operational commitments (page updated Apr. 22, 2025)
France	Romania	🪖 Ground forces	French-led NATO battalion in Romania 1,400 Official announcement	Confirmed active	Apr 22, 2025	Oct 30, 2025	French Ministry of the Armed Forces: operational commitments (page updated Apr. 22, 2025) Agerpres: Vautrin says French presence in Romania to remain at NATO-agreed level (Oct. 30, 2025)

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Latest military deployment news

Public information only, linked to its source. Estimates and claims are labeled, and locations are given at country or sea-area level. See the full deployments directory or the Military Deployments Tracker.