The ground is the core space of human activity, even if is in sea power times, sea power also is to be in fact " by the sea inshore " dominate end of this one core and of the service. Because this army is the mankind the oldest also be most fundamental army services. Army although very foundation, but differ with navy and the air force later, army is the army services that has control power truly. No matter be aggression or defence, ground force is only occupational location, ability of this one area is the control that is in some one party in.
Army is not technology intensive army services, but it is dimensions army services however, the army of country of the majority on the world is the main body of this country armament, because have ground force only,ability can control the core airspace of human activity truly. And a land battle is different from air battle and naval battle, be at war the distance should be gotten nearly much, and balance more, because this must want,sufficient scale deals with likely casualties. Perhaps air man won't confront battleplan of the other side and air defence system, navy perhaps worries about barge far from, but even if is to arm regular army soldier of the tooth, still be beaten dead possibly by the sniper's shot of guerrilla. The technical advantage of army pulls open absolute level very hard truly, dimensions remains the one part with answer casualties very important. Be the same as width of a front for instance, a brigade compares a division for certain more use up via rising.
Of army fight the environment is the most complex in fact, the various landform on the ground can affect the logistics of army, communication and firepower deeply, prep let alone enclothes subterranean three-layer to arrive on the ground the urban space of 30 height. Different system needs below the environment of different type, its control ability to also be restricted by environmental profundity, a keen-witted and capable area force can realize tall exchange possibly to compare, but its control limits effectively to still may want than extensive force small. Bumpkin army needs larger scale without doubt, this is the element that answers complex environment to fall to have safeguard most.
But the army services that even if is not technology intensive, giant dimensions still brought about a big question -- expensive. And as industrialization, although national finance ability is increasing, finance method is more diversiform also, but the expenses of army also is rising, now the expenditure of an individual equipment special also do not poor, tank of prep let alone, panzer, gunship this kind of heavy equipment. Of manpower and equipment cost rise, army although the technology is done not have relatively so concentrated but the price still rises in upgrade, how to poise between finance ability and safe ability, it is the difficult problem that each country should face forever.
Ground war no more than two kinds of condition, aggression and defence. Below the setting that changes in the technology, be helpful for aggression occasionally, for instance early days of World War II; Be helpful for defence occasionally, than consistent battle. But after nuke appears, the circumstance produced change, the aggression efficiency of nuke basically is blasting off only frame on deterrence, and defence efficiency is solid however of dozen of fact. Country having a nucleus does not need so much army to defend the territory of one's country instead, accordingly to having the state having a nucleus of defense demand only, scale of contractible and standing army can be accepted. Of course, the flexibility that still needs to keep enough, maneuverability and arouse efficiency, obtain inside projectile limits as far as possible military strength advantage.
If be in aggression, especially external influence is projectile, major nation still can be withheld have extensive ground force, having an exception nevertheless is American army. The U.S. Army still has 750 thousand ground force before 1989, the reagan-administration when 1989 undertook reform, reduce 580 thousand person, only 470 thousand is control now, the saying that does not calculate national posse is old without Korea army dimensions even. But the U.S. Army often is in aggression condition however. Its core reason depends on, the United States is had many affined, even if overseas also can win the support of ally army, the Western Europe allied forces that is in Europe for instance, Turkey army in the Near East, perhaps be in the Korea army of East Asia. Such, the United States also can reduce army scope really, only 2017 476 thousand army adds posse of on 343 thousand countryman, add on 186 thousand Marine Corps, this is the United States' total area force. Such area force adds efficient systematize to fight ability and allied forces cooperate with, the United States can form dimensions advantage really.
Accordingly, the dimensions army is contractible, it is a choice, when the navy that should have technology intensive especially and empty military supplies should make the same score booth military expenditure. But, is ground force not main really? Not be. The dimensions just of army is very important, because the dimensions of army matters to control ability directly, be in need pilot place (especially mode of public security battle) , army must want to sufficient scale will answer the potential or honest menace of the other side. If dimensions is insufficient, so control force can become poor. In cannot use nuclear weapon, affined perhaps and very few when, dimensions of U.S. Army army can have bit of have too many problems to deal with. The U.S. Army military strength that is immersed in battle of long-term public security in Afghanistan and Iraq is not worth significantly, if not be seasonable strategy,adjust the United States to may not control Iraqi condition 2007. In Afghanistan also be such, the deploy of 100 thousand U.S. Army that even if is highest peak period is in Afghanistan, still can control big city and traffic route only, vast rustic area remains Taliban and the world of other tribe armed.
So, army still needs certain dimensions ability to maintain fighting capacity, had jumped over lesser by no means. Army perhaps is destined bumpkin, but maintaining is sufficient scale at least very important from beginning to end. Level of the style that fight, technology, try pilot environment, attack or what can rely on is defence, affined, it is the influencing factor of army dimensions. Of course, if future uses robot soldier, probably a few mankinds can fight enoughly since the organization really ability.