In the wake of the 9/11 attacks on the United States, the responses to terrorism increased throughout the world. The face of Homeland Security is now heavily focused
on the prevention, preparedness, response and recovery of terrorist attacks not only in the United States, but also amongst some of America’s oldest allies. This thesis studies the level of change in homeland security strategy of European NATO members after the 9/11
attacks in the United States. The analysis of strategic components within each NATO member’s homeland security strategy (history, laws, counterterrorism agencies and budget support) shows significant change. The international community’s perspective and role in terrorism and homeland security strategy can be an important component toward the safety and security in the United States. Terrorism’s influence on homeland
security programs abroad is evidence that its successful mitigation and defeat will be contingent upon international cooperation and strategy.