South Korea has joined the U.S. Cyber Command’s annual multilateral cyber exercise for the first time this week, Seoul said Monday, as the two allies push forward cooperation in cyberspace to counter more frequent and sophisticated North Korean attacks.

According to a press release from South Korea’s Cyber Command, the ROK sent 18 operators to participate in the Cyber Flag 23 exercise between Oct. 24 and Oct. 28 in Virginia. 

“Tactical training is the most effective way to share information on inter-state agreements in cyberattack situations against countries and the military, and verifies the effectiveness of