jp1_02

As Amended Through 15 March 2013
terms of reference — 1. A mutual agreement under which a command, element, or unit
exercises authority or undertakes specific missions or tasks relative to another
command, element, or unit. 2. The directive providing the legitimacy and authority to
undertake a mission, task, or endeavor. Also called TORs. (JP 3-0)
terrain analysis — The collection, analysis, evaluation, and interpretation of geographic
information on the natural and man-made features of the terrain, combined with other
relevant factors, to predict the effect of the terrain on military operations. (JP 2-03)
terrain avoidance system — A system which provides the pilot or navigator of an aircraft
with a situation display of the ground or obstacles which project above either a
horizontal plane through the aircraft or a plane parallel to it, so that the pilot can
maneuver the aircraft to avoid the obstruction. (JP 3-50)
terrain flight — (*) Flight close to the Earth’s surface during which airspeed, height,
and/or altitude are adapted to the contours and cover of the ground in order to avoid
enemy detection and fire. Also called TERF.
terrain intelligence — Intelligence on the military significance of natural and man-made
characteristics of an area. (JP 3-15)
terrestrial environment — The Earth’s land area, including its man-made and natural
surface and sub-surface features, and its interfaces and interactions with the atmosphere
and the oceans. (JP 3-59)
territorial airspace — Airspace above land territory, internal waters, archipelagic waters,
and territorial seas.
territorial sea — A belt of ocean space adjacent to and measured from the coastal state’s
baseline to a maximum width of 12 nm. Throughout the vertical and horizontal planes
of the territorial sea, the coastal state exercises sovereign jurisdiction, subject to the
right of innocent passage of vessels on the surface and the right of transit passage in,
under, and over international straits. Territorial sea areas that are a continuation of sea
lanes through archipelagoes are subject to archipelagic sealane passage, with the same
transit rights as those that apply to international straits.
terrorism — The unlawful use of violence or threat of violence to instill fear and coerce
governments or societies. Terrorism is often motivated by religious, political, or other
ideological beliefs and committed in the pursuit of goals that are usually political. See
also antiterrorism; combating terrorism; counterterrorism; force protection
condition. (JP 3-07.2)
terrorist threat level — An intelligence threat assessment of the level of terrorist threat
faced by US personnel and interests in a foreign country. The assessment is based on a
continuous intelligence analysis of a minimum of five elements: terrorist group
290 JP 1-02