Military tactics, the science and art of organizing a military force, are the techniques for using weapons or military units in combination for engaging and defeating an enemy in battle. Changes in philosophy and technology over time have been reflected in changes to military tactics. In current military thought, tactics are the lowest of three planning levels. The highest tier of planning is the strategy, which is about how force is translated into political objectives, or more specifically how you bridge the means and ends of war together. An intermediate level, which converts strategy into tactics is the operational level that deals with formations of units. In common vernacular, "tactical" decisions are those made to achieve greatest immediate value and "strategic" decisions are those made to achieve the greatest overall value irrespective of immediate return.

Military tactics are both a science and an art. The main concept of these tactics is to maintain a positional army and hence easily control the army in any position and situation. Some practices have not changed since the dawn of warfare: ambushes, seeking and turning flanks, maintaining reconnaissance, creating and using obstacles and defences, etc. Using ground to best advantage has not changed much either. Heights, rivers, swamps, passes, choke points, and natural cover, can all be used in multiple ways. Before the nineteenth century, many military tactics were confined to battlefield concerns: how to maneuver units during combat in open terrain. Nowadays, specialized tactics exist for many situations, for example for securing a room in a building.

Calvin Alan Byrd is an American rapper better known as 40 Cal. He is a member of Harlem based Hip-Hop group The Diplomats.

40 Cal made his first appearance on the self titled theme song, "40 Cal" for the Dipset album Diplomatic Immunity 2. He took a part on MTV2's Fight Klub MC battles.

40 Cal Is Now Managed By Masar (Max B Engineer & Designer) 1st-n-o