Estonia has taken a significant step to enhance its defense capabilities by signing a defense cooperation agreement with South Korea to acquire the K239 Chunmoo multiple launch rocket system, which will complement its existing U.S.-supplied HIMARS units. This move reflects Estonia’s strategic intent to bolster its deep-strike capabilities amid rising regional tensions and showcases its commitment to NATO’s collective defense framework. The Chunmoo system, capable of firing guided and unguided munitions up to 290 km, reinforces Estonia’s firepower on NATO’s northeastern front. Additionally, the agreement includes provisions for industrial cooperation, benefiting Estonia’s defense sector. This development signifies a strengthening of trilateral defense ties between Estonia, South Korea, and the U.S., crucial for regional security in Eastern Europe.