JP 3-60, page 134

Glossary GL-10 JP 3-60 target of opportunity. 1. A target identified too late, or not selected for action in time, to be included in deliberate targeting that, when detected or located, meets criteria specific to achieving objectives and is processed using dynamic targeting. 2. A target visible to a surface or air sensor or observer, which is within range of available weapons and against which fire has not been scheduled or requested. (Approved for incorporation into JP 1- 02.) target overlay. None. (Approved for removal from JP 1-02.) target priority. None. (Approved for removal from JP 1-02.) target signature. None. (Approved for removal from JP 1-02.) target system. 1. All the targets situated in a particular geographic area and functionally related. 2. A group of targets that are so related that their destruction will produce some particular effect desired by the attacker. (JP 1-02. SOURCE: JP 3-60) target system analysis. An all-source examination of potential target systems to determine relevance to stated objectives, military importance, and priority of attack. Also called TSA. (Approved for incorporation into JP 1-02.) target system assessment. The broad assessment of the overall impact and effectiveness of the full spectrum of military force applied against the operation of an enemy target system, significant subdivisions of the system, or total combat effectiveness relative to the operational objectives established. (Approved for incorporation into JP 1-02.) target system component. A set of targets belonging to one or more groups of industries and basic utilities required to produce component parts of an end product, or one type of a series of interrelated commodities. (JP 1-02. SOURCE: JP 3-60) time-sensitive target. A joint force commander validated target or set of targets requiring immediate response because it is a highly lucrative, fleeting target of opportunity or it poses (or will soon pose) a danger to friendly forces. Also called TST. (Approved for incorporation into JP 1-02.) toss bombing. None. (Approved for removal from JP 1-02.) unanticipated target. A target of opportunity that was unknown or not expected to exist in the operational environment. (JP 1-02. SOURCE: JP 3-60) unplanned target. A target of opportunity that is known to exist in the operational environment. (JP 1-02. SOURCE: JP 3-60) validation. 1. A process associated with the collection and production of intelligence that confirms that an intelligence collection or production requirement is sufficiently important to justify the dedication of intelligence resources, does not duplicate an existing requirement, and has not been previously satisfied. (JP 2-01) 2. A part of target development that ensures all vetted targets meet the objectives and criteria