Estonian Defense Forces initiated the 20th iteration of the large-scale military exercise Spring Storm 2026 on May 4, lasting until June 1. The exercise involves over 12,000 soldiers from Estonia and allied nations including France, Latvia, and the United Kingdom. It aims to practice planning and executing defensive operations in cooperation between the Estonian Division and allied forces under simulated conventional warfare conditions. Exercises primarily occur across Põlva, Tartu, Valga, Viljandi, and Võru counties in Estonia, with additional training activities in northeastern Latvia to enhance cross-border military cooperation. Notably, the UK 4th Brigade is deployed from the UK to Estonia for integration into the Estonian Division maneuvers. Activities incorporate lessons from Russia's war in Ukraine, including tactics and use of unmanned systems. Air operations cover all Estonian territory, featuring attack and fighter aircraft plus unmanned aerial systems. Ground movements include military vehicle convoys (10–15 vehicles each) traveling at up to 70 km/h on specified routes during May 6–16.

Estonian Defense Forces initiated the 20th iteration of the large-scale military exercise Spring Storm 2026 on May 4, lasting until June 1. The exercise involves over 12,000 soldiers from Estonia and allied nations including France, Latvia, and the United Kingdom. It aims to practice planning and executing defensive operations in cooperation between the Estonian Division and allied forces under simulated conventional warfare conditions. Exercises primarily occur across Põlva, Tartu, Valga, Viljandi, and Võru counties in Estonia, with additional training activities in northeastern Latvia to enhance cross-border military cooperation. Notably, the UK 4th Brigade is deployed from the UK to Estonia for integration into the Estonian Division maneuvers. Activities incorporate lessons from Russia's war in Ukraine, including tactics and use of unmanned systems. Air operations cover all Estonian territory, featuring attack and fighter aircraft plus unmanned aerial systems. Ground movements include military vehicle convoys (10–15 vehicles each) traveling at up to 70 km/h on specified routes during May 6–16.