However, in 2015 it appears IS strategy evolved to include pursuing terrorist attacks globally. Are Islamic State Affiliates Operating in Other Countries? What Types of Assistance Are Coalition Partners and Other Nations Contributing to Countering IS Activities? High-profile terrorist attacks attributed to the Islamic State organization in several countries are altering the terms of U.S. and allied policy debates about the threat posed by the group and current strategic approaches to defeating it. These proposals have included several types of authorizing and constraining provisions, including the following:
identifying legitimate targets of military force, including the Islamic State, associated forces of the Islamic State, and others; prohibiting long-term, large-scale use of U.S. armed forces; limiting geographic area of military operations; placing time limits on existing and new authority to use military force; repealing existing AUMFs or stating that new authority supersedes older authorities with regard to the Islamic State; and requiring regular reporting, certification of certain conditions, and consultation with Congress regarding the campaign against the Islamic State. He argued that the United States and its allies will have to deal with IS threats "for quite some time" and suggested that one potential motivation for the group's embrace of transnational terrorism as a tactic and strategic tool is its desire to signal continuing momentum in the face of limited progress and battlefield setbacks in Iraq and Syria since late 2014. On November 13, 2015, coordinated terrorist attacks in Paris left at least 129 people dead and over 350 injured at 6 locations throughout the city. U.S. Legal Considerations Relating to Threats from the Islamic State

		What Legal Tools Are Available to Deter Travel by a Suspected Terrorist? The terrorist attacks in Paris last week, for which the Islamic State has claimed responsibility, have renewed concerns about terrorist travel.
In the wake of the deadly November 13, 2015, terrorist attacks in Paris, U.S. policymakers are faced with a wide range of strategy and operational considerations related to the activities of and threats emanating from the Islamic State (IS). A terrorist attack such as this prompts an examination of U.S. domestic security precautions; the role of allies and coalition partners; the appropriate military and diplomatic reactions; the safety and security of infrastructure and that of travelers; and numerous additional discrete issues that require the active involvement of dozens of federal, state, and local government agencies.
With the attacks in Beirut, over Egypt, and in Paris, the Islamic State has demonstrated a transnational capability that suggests its strategic objectives and tactics have evolved, gaining strength in some areas and losing capacity in others. The response to these attacks by the United States and other nations continues to evolve as the threat posed by IS changes.
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