NATO forces have launched a sweeping series of military exercises stretching from the Baltic states to the Arctic.
Bringing tens of thousands of troops into coordinated drills along Russia’s borders in one of the alliance’s most extensive training efforts in recent years.
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The largest phase began on May 4 in Estonia, where the annual Spring Storm exercise is underway, according to the Estonian Minister of Foreign Affairs Margus Tsahkna on May 4. The operation is expected to run for nearly a month and will involve more than 12,000 personnel during its peak phase, including Estonian troops and a wide range of allied forces.
Participants include units from the United Kingdom, Germany, the United States, France, Poland, Canada, the Netherlands, and several Nordic and Baltic nations, reflecting the breadth of NATO’s eastern flank. Ukraine is also taking part in the drills, underscoring the growing integration of its forces with Western militaries.
Spring Storm 2026 has kicked off, bringing 12,000+ Estonian and @NATO allied troops together to train side by side, strengthening readiness, planning and joint defence.#WeAreNATO #StrongerTogetherhttps://t.co/D1INWuUT3v pic.twitter.com/I8QXsfdwXS
— Margus Tsahkna (@Tsahkna) May 4, 2026
The exercises are designed to simulate large-scale conventional warfare, with a particular emphasis on joint planning, rapid troop deployments, and the integration of reinforcements into active combat operations.
Officials say the training incorporates lessons drawn from Russia’s war against Ukraine, including the expanded use of drones and modern battlefield coordination.
At the same time, additional exercises are unfolding across neighboring countries.
In Lithuania, a separate set of tactical drills was taking place in and around Panevėžys, involving roughly 1,000 troops alongside representatives from various government agencies. The exercise focuses on coordinated response scenarios and battlefield readiness at the brigade level.
The Finnish Army, @Maavoimat, are leading from the front! 🇫🇮
— NATO Allied Joint Force Command Norfolk - JFCNF (@JFCNorfolk) May 4, 2026
Realistic training based on real world experience, past lessons and current conflicts is the key to future success.💪
During exercise #MightyArrow26, operations are conducted on the battlefield under the continuous… pic.twitter.com/1VR8g3GMWF
Further south in Poland, NATO troops launched training maneuvers at a military range in Orzysz on May 2, bringing together more than 3,500 personnel and hundreds of pieces of equipment, including US forces.
In Finland, drills are being conducted close to the Russian border as part of the Northern Strike 26 exercise, according to Finnish newspaper Keskisuomalainen on May 2. More than 600 troops from a Finnish artillery regiment have been deployed to the Vuosanga training area, located roughly 50 to 70 kilometers (30 to 45 miles) from Russia. Air units are also participating in the maneuvers.
🇷🇺🇵🇱 NATO has launched the large scale “Amber Shock 26” military exercises close to Russia’s border in Poland.
— WAR (@warsurv) May 4, 2026
Around 3,500 troops are taking part, along with hundreds of vehicles and heavy equipment in intensive training operations.
The scale and timing of the drills are… pic.twitter.com/b4MevVIG7x
Finland is set to host additional large-scale training phases later in May, further expanding the scope of operations in the region.
Earlier, Russia accused European countries of rehearsing scenarios involving a naval blockade and possible seizure of the Kaliningrad region during recent military exercises led by the United Kingdom.
According to Russian officials, the exercises include scenarios that simulate isolating Kaliningrad, a Russian exclave located between Poland and Lithuania. He argued that military activity in the region has intensified in recent years as European forces expand their operational readiness.
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