Such intelligence may be scientific, technical, tactical, diplomatic or sociological, but these changes are analyzed in combination with known facts about the area in question, such as geography, demographics and industrial capacities.
Operational intelligence is focused on support or denial of intelligence at operational tiers.
Collection of read materials, composition of units or elements, disposition of strength, training, tactics, personalities (leaders) of these units and elements contribute to the overall intelligence value after careful analysis.
The tonnage and basic weaponry of most capital ships and aircraft are also public, and their speeds and ranges can often be reasonably estimated by experts, often just from photographs.
For example, the population, ethnic make-up and main industries of a region are extremely important to military commanders, and this information is usually public.
It is however imperative that the collector of information understands that what is collected is "information", and does not become intelligence until after an analyst has evaluated and verified this information.
Information requirements may be related to terrain and impact on vehicle or personnel movement, disposition of hostile forces, sentiments of the local population and capabilities of the hostile order of battle.
In response to the information requirements, analysts examine existing information, identifying gaps in the available knowledge.
Areas of study may include the operational environment, hostile, friendly and neutral forces, the civilian population in an area of combat operations, and other broader areas of interest.
Military intelligence is a military discipline that uses information collection and analysis approaches to provide guidance and direction to assist commanders in their decisions.
This aim is achieved by providing an assessment of data from a range of sources, directed towards the commanders' mission requirements or responding to questions as part of operational or campaign planning.
Intelligence activities are conducted at all levels, from tactical to strategic, in peacetime, the period of transition to war, and during a war itself.
Most governments maintain a military intelligence capability to provide analytical and information collection personnel in both specialist units and from other arms and services.