JP 3-0, page 118

Chapter V V-12 JP 3-0 international organizations for the maintenance of peace. Although it may be viewed as a diplomatic mission, the military can play an important role. For example, US military personnel may be involved in verifying an arms control treaty; seizing WMD; escorting authorized deliveries of weapons and other materials (i.e., enriched uranium) to preclude loss or unauthorized use of these assets; conducting and hosting site inspections; participating in military data exchanges; implementing armament reductions; or dismantling, destroying, or disposing of weapons and hazardous material. d. Combating Terrorism. Combating terrorism involves actions taken to oppose terrorism from wherever the threat exists. It encompasses antiterrorism—defensive measures taken to reduce vulnerability to terrorist acts—and CT—offensive measures taken to prevent, deter, preempt, and respond to terrorism. (1) Antiterrorism involves defensive measures used to reduce the vulnerability of individuals and property to terrorist acts, to include limited response and containment by local military forces and civilians. Antiterrorism programs form the foundation for effectively combating terrorism. The USG may provide antiterrorism assistance to foreign countries under the provisions of Title 22, USC (under Antiterrorism Assistance). For further guidance on antiterrorism, refer to JP 3-07.2, Antiterrorism. (2) Counterterrorism. CT is primarily a SO core task and consists of actions taken directly against terrorist networks and indirectly to influence and render global and regional environments inhospitable to terrorist networks. Normally, CT operations require specially trained personnel capable of mounting swift and effective action. CT is often associated with IW. However, terrorism can also occur in conjunction with large- scale traditional combat and require commanders to integrate CT with these operations. An enemy using irregular methods often will use terrorist tactics to wage protracted operations in an attempt to break the will of their opponent and influence relevant populations. At the same time, terrorists and insurgents also seek to bolster their own legitimacy and credibility with those same populations. Therefore, CT efforts should include all instruments of national power to undermine an adversary’s power, will, and its credibility and legitimacy, as well as its ability to influence the relevant population. For further details concerning CT and SO, refer to JP 3-05, Special Operations, and JP 3-26, Counterterrorism. For US policy on CT, refer to the National Strategy for Combating Terrorism. e. DOD Support to CD Operations. DOD supports federal, state, and local law enforcement agencies in their effort to disrupt the transport and/or transfer of illegal drugs into the United States. Specific DOD CD authorities are contained in the National Defense Authorization Act of 1991; Public Law Number 101-510, Section 1004, as amended; as well as Title 10, USC, Sections 124 and 371-382.