Intelligence that is crucial and requires the immediate attention of the commander.
Intelligence that is crucial and requires the immediate attention of the commander. It is required to enable the commander to make decisions that will provide a timely and appropriate response to actions by the potential or actual enemy. It includes but is not limited to the following:1) strong indications of the imminent outbreak of hostilities of any type (warning of attack); 2) aggression of any nature against a friendly country; 3) indications or use of nuclear, biological, and chemical weapons; or 4) significant events within potential enemy countries that may lead to modification of nuclear strike plans.
Critical Intelligence has been defined 2 different ways in documents like Department of Defense Dictionary of Military and Associated Terms, CI Glossary.