Operational level of war
In the field of military theory, the operational level of war (also called the operational art, as derived from Russian: оперативное искусство, or the operational warfare) represents the level of command that coordinates the minute details of tactics with the overarching goals of strategy.
During the 18th and early 19th centuries the synonymous term grand tactics was often applied to describe the manoeuvring of troops not tactically engaged, while in the late 19th century and beyond the First World War the term minor strategy was also in use through the Second World War by some military commentators. The confusion over terminology was brought up in professional military publications that sought to identify "...slightly different shades of meaning, such as tactics, major tactics, minor tactics, grand strategy, major strategy, and minor strategy".
Operational mobility, beginning as a concept during the period of the mechanisation of armed forces, became a method of managing the movement of forces by strategic commanders from the staging area to their Tactical Area of Responsibility.