In the 21st century, terrorism has been one of the most prominent national and international security and defense problems. While terrorism is a centuries-old issue, it has gained prominence since the massive improvement of technology from the mid-20th century onward and has become a force used by state and non-state actors and poses significant problems for democratic and authoritative regimes alike. In many ways, terrorism and its ability to be conducted anywhere, at any time, has been aided seriously by globalization.
There is an old saying about counterterrorism: it is like mowing the grass in your front lawn. It needs to be a consistent process, even though sometimes you do not know exactly where the enemy is. The future of counterterrorism operations lies in better cooperation among Western nation-states.