The main difficulty in seeing the distinction between Independent and Divisional Cavalry consists in our forgetting that we have different kinds of organizations in the army as well as we have anywhere else. Let us clearly understand this: (1) An Infantry Division is composed of nine regiments of infantry, two of artillery, and one of cavalry. (2) A Cavalry Division is composed of nine regiments of cavalry, one regiment of horse artillery, and no infantry. The cavalry attached to an Infantry Division is, in general, called Divisional Cavalry. It operates at but comparatively short distances from its division, its duties being of a somewhat local nature. The Independent Cavalry, because it can move so rapidly, is sent far in advance (thirty, forty, or even fifty or more miles) of the main army to obtain general information, such as the approximate strength and location of the enemy's forces. The Division Commander, since he is so far away from the Commanding General of the army in rear, and since he has broad general duties to perform, must of necessity have broad powers and, in general, be permitted to act as the occasion demands. He is, therefore, said to act independently, and his cavalry is called Independent Cavalry. THE DIFFERENCE BETWEEN STRATEGY AND TACTICS Strategy is generalship in its broadest conception. A strategist conceives and projects campaigns. He determines where armies and navies are to be sent. He is not concerned with the handling or manœuvers of armies and fleets. He turns over those details to tacticians. He is the master mind, far removed, generally, from the battle line, who picks up an army or fleet here, and puts it there. Tactics is the act and science of disposing (arranging) armies and fleets in order for battle. A tactical commander (tactician) solves local details. Strategy pertains to conception, to policy; tactics, to technique. The great General Staff in Washington inaugurates the problems to be solved (strategy), and details commanders (tacticians) to solve them. EMPLOYMENT OF AIR CRAFT ON AND NEAR THE FIRING LINE IN THE THEATER OF OPERATION Airplanes will move far out, perhaps hundreds of miles, in front of our most advanced cavalry for the purpose of gathering general information of large bodies of the enemy's forces. This is called Strategical Reconnaissance. Other airplanes do more local scouting. They go but comparatively short distances from the firing line for the purpose of determining the location of trenches, supports, reserves, artillery positions, etc. This is called tactical reconnaissance. They give their artillery commanders information as to where their projectiles are falling.