軍事

Military — Grokipedia Fact-checked by Grok 1 month ago Military Ara Eve Leo Sal 1x The military, also known as the armed forces, consists of state institutions comprising regular and auxiliary personnel organized, trained, and equipped for national defense, including the preparation and execution of warfare to protect sovereignty and interests. [1] These forces may also contribute to internal security when civilian authorities require support. [1] Originating in early civilizations where they secured frontiers, subdued rivals, and enabled rulers to accumulate resources, militaries evolved from ad hoc tribal groups into structured organizations by antiquity, with professional standing armies emerging prominently in Europe from the 16th to 18th centuries. [2] [3] In the modern context, their core functions encompass deterring potential aggressors, projecting power to safeguard national objectives, and achieving battlefield superiority, where empirical studies of engagements from 1600 to 1973 highlight the decisive roles of numerical force advantages, leadership quality, and unit cohesion over technological edges alone. [4] [5] As of 2024, nearly all sovereign states maintain militaries, with global active-duty personnel totaling around 27 million and expenditures reaching $2.718 trillion, reflecting heightened geopolitical tensions including the Russia-Ukraine conflict and regional arms races. [6] [7] Defining characteristics include specialization into branches like army , navy , and air force ; reliance on deterrence through credible threats of overwhelming retaliation; and occasional controversies such as coups d'état in unstable regimes or debates over procurement inefficiencies tied to domestic industrial interests, though these persist amid the causal reality of interstate competition necessitating sustained readiness. [8] [9] Definitions and Scope Etymology The English adjective and noun "military," denoting matters or personnel related to soldiers and war, entered the language in the mid-15th century from Middle English militari , borrowed via Old French militaire . [10] This traces directly to Latin mīlitāris , an adjective meaning "of soldiers or war, warlike, or pertaining to military service," formed from mīles (genitive militis ), the classical Latin term for "soldier," particularly a foot soldier in the Roman legions. [11] In Roman usage, mīles contrasted with higher-status cavalry or officers, emphasizing the common infantryman who served for pay ( stipendium ) and underwent rigorous training. [10] The etymology of mīles itself remains uncertain, with no definitive Indo-European root established despite scholarly proposals linking it to concepts of "milling" (as in grinding grain, metaphorically for organized masses) or "going with full force" via a reconstructed form like *mil-it-. [10] Early attestations appear in Latin texts from the 6th century BCE onward, predating Greek influences, and it lacks clear cognates in other Italic languages , suggesting possible pre-Indo-European substrate origins in the Italian peninsula . [12] Related derivatives in Latin include militia (" military service ") and militare ("to serve as a soldier "), which influenced Romance languages and, through Norman French, much of modern European military terminology . [10] Core Concepts and Distinctions The military refers to the organized armed forces of a state, structured to conduct warfare, defend territory, and achieve national security objectives through the application of combat power. [13] Core concepts include military doctrine , which encompasses fundamental principles guiding the employment of forces, providing a framework for operations rather than rigid rules. Operational concepts further translate military strength into power via schemes of maneuver for planning and execution. A primary distinction lies between regular military forces and paramilitary organizations. Regular militaries are professional entities under direct state control, equipped for external defense and large-scale combat , whereas paramilitaries operate in a military-like manner but lack full official status, often focusing on internal security, border patrol , or supplementary roles with semi-official sanction. [14] This separation ensures militaries prioritize existential threats while paramilitaries handle lower-intensity domestic functions, though overlaps can blur lines in unstable regimes. Forces may be professional volunteer armies or conscript-based. Professional armies consist of full-time volunteers with extended training , fostering expertise, cohesion, and adaptability, which empirical outcomes in conflicts like the post-1973 U.S. all-volunteer force demonstrate through sustained operational effectiveness. [15] Conscript armies, relying on mandatory short-term service, generate larger reserves at lower cost but suffer from reduced proficiency and motivation , as shorter tenures limit skill development and combat readiness . [16] Conventional warfare involves symmetric engagements between state militaries using uniformed troops, massed conventional arms, and structured battles for territorial control, as seen in World War II fronts. [17] In contrast, unconventional or irregular warfare employs asymmetric tactics by non-state actors or insurgents, leveraging guerrilla methods, subversion, and indirect approaches to erode adversary will without direct confrontation. [18] Militaries are typically divided into branches by operational domain: army for land operations, navy for maritime power projection, air force for aerial dominance, marine corps for amphibious assault, space force for orbital assets, and coast guard for coastal enforcement, each with specialized equipment, training, and doctrines to integrate in joint operations. [19] These distinctions enable comprehensive force employment across environments, from terrestrial battles to cyber and space domains. Evolution of Military Roles In prehistoric societies, military roles primarily involved small-scale raids and defense of kin groups against resource competitors, with participants serving as ad hoc warriors drawn from the general population rather than specialized forces. Organized military structures emerged with early civilizations around 3150 BC, as evidenced by conflicts between Upper and Lower Egypt and Sumerian engagements with Elam , where forces focused on conquest, territorial control, and resource acquisition using rudimentary infantry formations. [20] [21] The formation of empires in the Bronze Age shifted roles toward sustained campaigns of expansion and internal pacification, with ancient powers like Egypt under Thutmose III (1479–1425 BC) deploying specialized infantry , chariots, and archers for offensive dominance and defensive consolidation. [22] In classical antiquity , professional armies such as Rome's legions, established by the 3rd century BC , expanded functions to include engineering (e.g., road and fort construction ), provincial policing, and supply line maintenance alongside combat, enabling the maintenance of vast territories through disciplined, full-time service. [23] Medieval Europe transitioned to feudal systems by the 9th century , where military roles devolved to vassal levies and knightly retinues obligated for limited service in defense against invasions or feudal disputes, supplemented by mercenaries for offensive ventures like the Crusades (1095–1291), reflecting decentralized authority and seasonal mobilization rather than permanent forces. [24] The Ottoman Empire pioneered modern standing armies with the Janissaries in the 14th century, trained as elite infantry for conquest and imperial defense, while Europe lagged until France's 1445 Ordinance created the first permanent cavalry and infantry units, marking a shift to professional, state-controlled forces for continuous readiness and fiscal sustainability. [25] The 17th–19th centuries saw the proliferation of national standing armies across Europe , driven by gunpowder tactics and absolutist states, with roles encompassing not only interstate warfare but also internal suppression of revolts, as in Prussia's disciplined forces under Frederick the Great (1740–1786). [26] Industrialization enabled mass conscription during total wars, such as the Napoleonic Wars (1803–1815) and World Wars I and II, where militaries assumed logistical, industrial, and societal mobilization roles to sustain prolonged attrition. [27] Post-World War II, nuclear deterrence redefined roles in superpowers like the U.S. and USSR, emphasizing strategic stability over conquest, while the Cold War (1947–1991) involved proxy conflicts and containment . [9] The 1990s onward incorporated peacekeeping and stabilization, beginning with the UN Emergency Force (UNEF I) in 1956 for Suez Crisis monitoring, evolving to multidimensional missions by the 2000s involving disarmament, civilian protection, and election support in over 70 operations. [28] [29] Contemporary militaries balance traditional combat with asymmetric warfare against non-state actors, cyber operations for domain defense, space asset protection, and non-combat functions like disaster relief, as U.S. forces demonstrated in responses to Hurricanes Katrina (2005) and Maria (2017), reflecting expanded mandates for national resilience amid hybrid threats. [9] [30] Historical Foundations Ancient and Classical Eras The origins of organized militaries trace to ancient Mesopotamia , where the earliest documented conflict between Lagash and Umma occurred around 2525 BCE, as recorded in textual evidence and the Stele of the Vultures . [31] [32] Sumerian forces primarily comprised close-order foot soldiers armed with long spears held in both hands, numbering in the thousands for major engagements, with early units relying on leather cloaks rather than shields for protection by approximately 2800 BCE. [33] These militias evolved toward more professional elements during