Estonia Received First IRIS-T SLM Air Defense System

The Estonian Air Defense Division (Õhukaitsedivisjon) at Ämari Air Base has received the first components of the IRIS-T SLM mobile air defense missile system, enabling the Estonian Defense Forces to engage air threats at greater distances and altitudes than existing short-range systems.

Estonian Defense Forces announced this.

The system was procured by the Estonian Center for Defense Investments (ECDI) from the German defense company Diehl Defence.

“IRIS-T is a medium-range air defense system that has proven itself in Ukraine, and it takes our air defense to a new level by enabling us to engage targets from significantly greater distances and altitudes than was possible with our existing short-range systems. The war in Ukraine has clearly demonstrated that a robust air defense system is a central component of national defense, essential for protecting our people, Defense Forces units, and critical infrastructure,” Defense Minister Hanno Pevkur stated on June 22.

A framework agreement for the procurement of these systems was signed on September 11, 2023, between the German and Estonian Ministries of Defense.

“The delivery to Estonia demonstrates that we are capable of fulfilling our commitments even under the significant pressure currently being felt by the European air defense market. With every system delivered, we strengthen our partners’ defense capabilities, make a tangible contribution to NATO’s security architecture, and thereby help protect the Estonian people,” Helmut Rauch, CEO of Diehl Defence, stated.

Joint procurement of IRIS-T SLM under ESSI

The delivery of the IRIS-T SLM also underscores the importance of the European Sky Shield Initiative (ESSI), launched by Germany. Launched in 2022, the initiative aims to create an integrated European ground-based air defense system and currently has 23 member states. It is also designed to accelerate and generate long-term benefits in training, maintenance, and logistics.

Eight ESSI countries have already selected the IRIS-T SLM air defense system: Germany, Estonia, Latvia, Slovenia, Bulgaria, Sweden, Denmark, and Switzerland. Ukraine and Egypt are operators outside the ESSI initiative.

This procurement, the most expensive defense deal in the country’s history, demonstrates a clear intention to create a powerful deterrent against air threats, in line with NATO’s broader efforts to strengthen defenses in the east.

However, the immediate tactical impact remains limited due to the several months of training required for full operational integration, creating a temporary gap between system acquisition and full combat readiness.

IRIS-T

An IRIS-T SLM battery typically consists of several launchers, a radar, and a command post, and is supplemented by support equipment such as vehicles for reloading, maintenance, and transporting spare parts.

The IRIS-T SLM medium-range air defense system is designed to defend against aircraft, helicopters, and cruise missiles, and operates at ranges of up to approximately 40 km and altitudes of up to 20 km.