What do an assassination in Berlin, illegal trafficking by trans-national criminal organizations, cyber-attacks, disinformation campaigns, drone attacks against critical infrastructure, and private military companies serving as government proxies all have in common? They may seem like random and unconnected events. But they are all components of comprehensive adversarial strategies whose ultimate goal is subverting the European Union (EU), North Atlantic Treaty Organization (NATO), and partner states by undermining government legitimacy, destabilizing their societies, and weakening their populations’ and their governments’ resolve.