For decades, acts of religious, political, and ideological extremism have been an integral part of international relations and globalization. This phenomenon has been linked to the end of the Cold War, and what followed from political and social changes at the international level. Violent extremism, whether religious, political, or ideological, has spread notably and is no longer confined within national borders, becoming a global phenomenon as a result of the challenges that come with globalization. This type of violence, which is linked to specific events such as the September 11, 2001 attacks, has led to changes in the international security features and policies. After more than two decades of the United States of America’s campaign to counter terrorism which is often referred to as the “war on terror”, research shows that the number of radical extremists has, in fact, increased, which indicates the partial failure of states and societies in addressing this complex phenomenon.