Personnel and units Despite the growing importance of
military technology, military activity depends above all on people. For example, in 2000 the British Army declared: "Man is still the first weapon of war."
Rank and role The military organization is characterized by a
command hierarchy divided by
military rank, with ranks normally grouped (in descending order of authority) as
officers (e.g.
colonel),
non-commissioned officers (e.g.
sergeant), and personnel at the lowest rank (e.g.
private). While senior officers make strategic decisions, subordinated military personnel (
soldiers,
sailors,
marines, or
airmen) fulfil them. Although rank titles vary by
military branch and country, the rank hierarchy is common to all state armed forces worldwide. In addition to their rank, personnel occupy one of many trade roles, which are often grouped according to the nature of the role's military tasks on combat operations:
combat roles (e.g.
infantry),
combat support roles (e.g.
combat engineers), and
combat service support roles (e.g.
logistical support).
Recruitment Personnel may be
recruited or
conscripted, depending on the system chosen by the state. Most military personnel are males; the minority proportion of female personnel varies internationally (approximately 3% in India, 10% in the UK, 13% in Sweden, 16% in the US, and 27% in South Africa). While two-thirds of states now recruit or conscript only adults, as of 2017 50 states still relied partly on children under the age of 18 (usually aged 16 or 17) to staff their armed forces. Whereas recruits who join as
officers tend to be
upwardly-mobile, most enlisted personnel have a childhood background of relative
socio-economic deprivation. For example, after the US suspended conscription in 1973, "the military disproportionately attracted African American men, men from lower-status socioeconomic backgrounds, men who had been in nonacademic high school programs, and men whose high school grades tended to be low".
Obligations The obligations of military employment are many. Full-time military employment normally requires a minimum period of service of several years; between two and six years is typical of armed forces in Australia, the UK and the US, for example, depending on role, branch, and rank. Some armed forces allow a short
discharge window, normally during training, when recruits may leave the armed force as of right. Alternatively, part-time military employment, known as
reserve service, allows a recruit to maintain a civilian job while training under military discipline at weekends; he or she may be called out to
deploy on operations to supplement the full-time personnel complement. After leaving the armed forces, recruits may remain liable for compulsory return to full-time military employment in order to train or
deploy on operations. Penalties range from a summary
reprimand to imprisonment for several years following a
court martial. • Daily routine is tightly controlled (e.g. recruits must make their beds, polish boots, and stack their clothes in a certain way, and mistakes are punished);
Intelligence The next requirement comes as a fairly basic need for the military to identify possible
threats it may be called upon to face. For this purpose, some of the commanding forces and other military, as well as often civilian personnel participate in identification of these threats. This is at once an organization, a system and a process collectively called
military intelligence (MI). Areas of study in Military intelligence may include the operational environment, hostile, friendly and neutral forces, the civilian population in an area of combat operations, and other broader areas of interest. The difficulty in using military intelligence concepts and military intelligence methods is in the nature of the
secrecy of the information they seek, and the
clandestine nature that intelligence operatives work in obtaining what may be plans for a
conflict escalation,
initiation of combat, or an
invasion. An important part of the military intelligence role is the military analysis performed to assess
military capability of potential future aggressors, and provide combat modelling that helps to understand factors on which comparison of forces can be made. This helps to quantify and qualify such statements as: "
China and
India maintain the largest armed forces in the World" or that "the
U.S. Military is considered to be the world's strongest". Although some groups engaged in combat, such as militants or
resistance movements, refer to themselves using military terminology, notably 'Army' or 'Front', none have had the structure of a national military to justify the reference, and usually have had to rely on support of outside national militaries. They also use these terms to conceal from the MI their true capabilities, and to impress potential ideological recruits. Having military intelligence representatives participate in the execution of the national defence policy is important, because it becomes the first respondent and commentator on the policy expected
strategic goal, compared to the realities of
identified threats. When the intelligence reporting is compared to the policy, it becomes possible for the national leadership to consider allocating resources over and above the officers and their subordinates military pay, and the expense of maintaining military facilities and military support services for them.
Budget Defense economics is the financial and monetary efforts made to resource and sustain militaries, and to finance
military operations, including war. The process of allocating resources is conducted by determining a
military budget, which is administered by a military finance organization within the military. Military procurement is then authorized to purchase or contract provision of goods and services to the military, whether in peacetime at a permanent base, or in a combat zone from local population. File:Military Expenditures as percent of GDP 2017.png|Map of military expenditures as a percentage of
GDP by country, 2017 File:U.S - China - Russia, Military Spending.svg|History of military budgets by country
Capability development Capability development, which is often referred to as the military 'strength', is arguably one of the most complex activities known to humanity; because it requires determining: strategic, operational, and tactical capability requirements to counter the identified threats; strategic,
operational, and tactical doctrines by which the acquired capabilities will be used; identifying concepts, methods, and systems involved in executing the doctrines; creating design specifications for the manufacturers who would produce these in adequate quantity and quality for their use in combat; purchase the concepts, methods, and systems; create a forces structure that would use the concepts, methods, and systems most effectively and efficiently; integrate these concepts, methods, and systems into the force structure by providing
military education,
training, and
practice that preferably resembles combat environment of intended use; create
military logistics systems to allow continued and uninterrupted performance of
military organizations under combat conditions, including provision of health services to the personnel, and maintenance for the equipment; the services to assist recovery of wounded personnel, and repair of damaged equipment; and finally, post-conflict
demobilization, and disposal of war stocks surplus to peacetime requirements. Development of
military doctrine is perhaps the most important of all capability development activities, because it determines how military forces are used in conflicts, the concepts and methods used by the command to employ appropriately military skilled,
armed and
equipped personnel in achievement of the tangible goals and objectives of the
war,
campaign,
battle, engagement, and action. The line between strategy and tactics is not easily blurred, although deciding which is being discussed had sometimes been a matter of personal judgement by some commentators, and military historians. The use of forces at the level of organization between strategic and tactical is called
operational mobility. Complacency and inaccurate capability perceptions can reduce
combat effectiveness.
Science to disable its target. The mainstream use of
drone technology in the
Russian invasion of Ukraine led to a need to research, develop and deploy effective counter-measures. Because most of the concepts and methods used by the military, and many of its systems are not found in commercial branches, much of the material is researched, designed, developed, and offered for inclusion in
arsenals by
military science organizations within the overall structure of the military. Therefore, military scientists can be found interacting with all Arms and Services of the armed forces, and at all levels of the military hierarchy of command. Although concerned with research into
military psychology, particularly
combat stress and how it affects troop
morale, often the bulk of military science activities is directed at military intelligence technology,
military communications, and improving
military capability through research. The design, development, and prototyping of
weapons, military support equipment, and
military technology in general, is also an area in which much effort is invested – it includes everything from global communication networks and
aircraft carriers to paint and food.
Logistics to resupply a
forward operating base in
Afghanistan, 2011
Kawasaki C-2 military transport aircraft conducting an
airdrop demonstration over
Miho Air Base, 2018 Possessing military capability is not sufficient if this capability cannot be deployed for, and employed in combat operations. To achieve this,
military logistics are used for the
logistics management and logistics planning of the forces
military supply chain management, the consumables, and capital equipment of the troops. Although mostly concerned with the
military transport, as a means of delivery using different modes of transport; from
military trucks, to
container ships operating from permanent
military base, it also involves creating field supply dumps at the rear of the
combat zone, and even forward supply points in a specific unit's
tactical area of responsibility. These supply points are also used to provide
military engineering services, such as the recovery of defective and derelict vehicles and weapons, maintenance of weapons in the field, the repair and field modification of weapons and equipment; and in peacetime, the life-extension programmes undertaken to allow continued use of equipment. One of the most important role of logistics is the supply of
munitions as a primary type of consumable, their storage, and
disposal. ==In combat==