"In the coming years, Russia may actually represent the primary security challenge that we face in the military domain for the United States and certainly for Europe. Russia is an increasingly assertive adversary that remains determined to enhance its global influence and play a disruptive role on the global stage, including through attempts to divide the West", Kahl said at the Lithuania-hosted Baltic Military Conference on Friday.
"Far too often, Moscow erodes transparency and predictability, uses military force to achieve its goals, supports proxy groups to sow chaos and doubt, undermines the rules-based international order," he said, adding that "The United States continues to closely monitor Russian military activity along NATO's eastern flank and in the Black Sea region".