Short explanations of terms used in conflict analysis, security studies and Vigil modules.
35 terms5 categoriesDefinitions reviewed through 2026-07-20
This glossary defines terms used across Vigil modules. It is not a legal dictionary, not a military manual, and not a substitute for the full historical context a module provides. Terms vary by source, discipline and conflict, so Vigil uses cautious definitions and notes the common misunderstandings where they matter.
Entries are definitional: they describe how a term is used, not what is happening in any particular conflict. That is why they carry no confidence grades or source lists — the claims that need grading live in the modules each entry points to.How Vigil grades and dates its claims →
How conflicts are fought, sustained, widened and described.
Counterinsurgency
A government's combined military, political and administrative effort to defeat an insurgency and restore its own authority. Vigil describes it at the level of strategy and outcome, never as method or technique.
Why it matters
Counterinsurgency outcomes usually depend on governance, service delivery and legitimacy at least as much as on military results — which is why campaigns can succeed militarily and still fail politically.
Common confusion
Military success against an armed group does not by itself end an insurgency. Clearing an area is not the same as holding it, and holding it is not the same as governing it — the distinction is where most long-running campaigns are actually decided.
Escalation
A move to a higher level of intensity, scope or risk — more force, new weapons or target sets, new participants, or new geography. The related idea of an escalation ladder treats those steps as ordered rungs, a way of thinking about sequence rather than a staircase both sides agree on.
Why it matters
Escalation is how limited conflicts become large ones, and how a local war becomes a regional or international one. Watching for it is watching for a change in kind, not only in volume.
Common confusion
Escalation is not always deliberate. Steps intended as controlled signals are frequently read by the other side as threats, and both parties usually believe they are responding rather than escalating.
External actor
A state, alliance or organisation influencing a conflict from outside the immediate theatre — through arms, funding, diplomacy, sanctions, access and basing, or political cover.
Why it matters
External support often determines how long a conflict lasts and what terms are available to end it. It is also the most common route by which a local war becomes a regional confrontation.
Common confusion
Involvement is a spectrum, not a switch. Declared support, deniable support and simple political alignment are different things, and Vigil grades them separately rather than describing every interested power as a participant.
Grey-zone pressure
Sustained coercive activity deliberately kept below the threshold of open armed conflict — economic pressure, legal and administrative claims, information operations, incursions and patrols, cyber activity — applied over long periods rather than in a single act.
Why it matters
It allows a state to impose costs and normalise new baselines while denying the target any single moment that would clearly justify a response. The cumulative effect, not any individual incident, is the subject.
Common confusion
Below the threshold of war does not mean harmless, and it is not evidence that an attack is being prepared. In practice the boundary between pressure and conflict is contested and moves over time, which is part of why the approach is used.
Hybrid warfare
A contested umbrella term for combining military and non-military instruments — political, economic, informational, cyber and irregular — in one coordinated pressure campaign. Vigil uses it sparingly and prefers to name the specific instruments involved.
Why it matters
Its usefulness is the reminder that pressure is often applied across several domains at once and should be read as a whole, rather than incident by incident in separate categories.
Common confusion
The term is frequently used to mean little more than "hostile and not conventional". It does not name a doctrine any single state has adopted, and analysts genuinely disagree about whether it adds anything to older concepts.
Insurgency
An armed movement that contests, and seeks to replace or displace, a government's authority — usually while weaker than the state's regular forces, and relying on dispersal, mobility and local support rather than on holding ground continuously.
Why it matters
Insurgencies are contests over authority and population as much as over territory, which is why they can persist for years after major battles stop and why military results alone rarely end them.
Common confusion
Insurgency describes a form of conflict, not a verdict on the cause: the term says nothing about whether a movement's aims are legitimate. It is also not interchangeable with terrorism, which describes a tactic rather than a type of movement.
Intervention
Action by an outside state, coalition or organisation intended to change the course of a conflict. Interventions can be military, political, economic or humanitarian, and Vigil states which kind is meant rather than using the word on its own.
Why it matters
An intervention changes the balance of a conflict, and it usually creates commitments — political, financial and military — that outlast the reason for entering.
Common confusion
Intervention does not automatically mean invasion, and it is not made lawful simply because a host government invited it. Invitation, mandate, legality and effect are four separate questions, and Vigil keeps them apart.
Non-state armed group
An organised armed actor that is not the regular force of a recognised state — insurgent movements, militias, self-defence groups, armed political movements and private military companies.
Why it matters
Much of modern conflict involves actors who hold weapons, and sometimes territory, without holding formal statehood. That shapes who can negotiate, who can be held accountable, and what instruments outside powers have.
Common confusion
The category is descriptive and very broad: it groups actors with entirely different aims, structures and relationships to civilians, and implies nothing about legitimacy. Many groups also sit between the categories — sponsored, tolerated or partly integrated by a government.
Proxy war
A conflict in which outside powers pursue their own aims by supporting local combatants rather than fighting directly themselves. Vigil uses the term for the support relationship, not as a description of an entire war.
Why it matters
Naming the outside stake explains why a local war can attract weapons, money and diplomatic protection far beyond what the local parties could sustain on their own — and why ending it may require agreement between actors who are not doing the fighting.
Common confusion
Calling a war a proxy war does not mean the local actors lack their own aims, grievances or agency; the framing is often used to dismiss them. Most conflicts described this way are local wars with external sponsors, not wars manufactured by outsiders.
State and authority
Who governs, who is recognised, and what happens when that breaks down.
Autonomy
A recognised arrangement giving a region self-government over stated matters — often language, education, policing or resources — while remaining formally part of a larger state.
Why it matters
Autonomy is one of the few available positions between full central control and separation, which is why it appears repeatedly in negotiated settlements and in the disputes that follow them.
Common confusion
Autonomy on paper and autonomy in practice often differ substantially, in both directions. It is also not inherently a stage on the way to independence: it can be a durable settlement, or a compromise neither side treats as final.
Ceasefire
An agreement to stop fighting. Ceasefires may be local or general, temporary or open-ended, monitored or unmonitored — and those differences matter more than the word itself.
Why it matters
A ceasefire is where most wars pause before they end, and its terms — who monitors it, what counts as a violation, what happens to forces in place — shape everything negotiated afterwards.
Common confusion
A ceasefire is not a peace settlement and resolves none of the underlying dispute. Ceasefires are also routinely violated without collapsing, so a single reported violation is not evidence that one has ended.
De facto authority
An actor that actually administers a territory and population — policing, collecting revenue, running services and issuing documents — without holding recognised sovereignty over it.
Why it matters
Naming the de facto authority describes who people in an area must deal with in practice, which is frequently not who holds the legal title to it.
Common confusion
Describing an actor as a de facto authority is a description of control, never a recognition claim and never an endorsement. Vigil uses the term precisely so that describing a situation is not mistaken for accepting it.
Frozen conflict
A conflict where large-scale fighting has stopped but the political dispute is unresolved, leaving lines, claims and de facto authorities in place for years or decades.
Why it matters
Frozen conflicts shape regional politics long after the fighting, and they can reactivate quickly when the local balance of power, or outside attention, changes.
Common confusion
"Frozen" is misleading. These situations keep changing — through displacement, demography, infrastructure and shifting alignments — and several conflicts long described as frozen have resumed as major wars.
Recognition
Formal acceptance by other states, or by international organisations, of a state's existence or of a government's authority.
Why it matters
Recognition governs access to what makes statehood workable — treaties, borrowing, banking, aid, courts and representation — so its consequences are practical well beyond the symbolic.
Common confusion
Recognition is a political act, not a measurement of control: unrecognised authorities can administer territory effectively for decades, and recognised governments can control very little. It is also rarely universal — typically extended by some states and withheld by others.
Regime collapse
The fall of a governing leadership or ruling system — through military defeat, uprising, negotiated exit or internal fracture.
Why it matters
A regime's fall reorganises everything downstream of it: command over the armed forces, control of institutions and revenue, foreign alignment, and the range of settlements that become possible.
Common confusion
A regime falling is not the same as a state collapsing. Ministries, armies, courts and local administration can outlast a change of ruler. A regime can also be replaced without any of the conditions that produced the conflict being addressed.
Separatism
A political movement seeking to detach a territory from an existing state — to form a new state, or to join another one.
Why it matters
Separatist claims convert constitutional disputes into questions about borders, which is one reason they are among the hardest conflicts to settle and the most likely to draw in outside powers.
Common confusion
The word carries a judgement in nearly every conflict where it is used — one side's separatism is another's self-determination. Vigil therefore prefers to describe the specific claim and each party's position rather than using the label as a verdict.
Settlement
An agreement intended to resolve the political questions behind a conflict — status, borders, authority, security arrangements, and often justice, return and reconstruction.
Why it matters
Settlements are where military outcomes are converted into political arrangements. Their unresolved parts tend to define the next crisis, which is why the text and its gaps are worth reading closely.
Common confusion
A signed settlement is not an implemented one. Many are partial, sequenced over years, or accepted by only some of the parties — so Vigil describes implementation separately from signature.
State capacity
What a state can actually do — raise revenue, deploy and sustain forces, deliver services, enforce law and administer territory. Vigil treats capacity as a practical measure, kept separate from formal sovereignty.
Why it matters
Capacity explains why some governments survive severe shocks while others cannot administer regions they legally govern. It is often the single most useful thing to know about a conflict-affected state.
Common confusion
Capacity is not legitimacy, and neither is recognition. A government can be internationally recognised and legally sovereign while being unable to tax, police or supply large parts of its own territory — and the reverse also occurs.
State collapse
The breakdown of a state's core functions — security, administration, revenue collection, courts and public services — across much or all of its territory.
Why it matters
Where the state has stopped functioning, other actors take over its functions, and rebuilding capacity generally takes far longer than the fighting took.
Common confusion
Collapse is usually partial and uneven rather than total: a capital may function while entire regions do not. Very few states collapse completely, and "failed state" is a blunt label that hides which specific functions have failed, and where.
Military and security
Structural and strategic concepts — described conceptually, never operationally.
Air defence
The systems and organisation a state uses to detect and counter air and missile threats. Vigil treats air defence as a conceptual and strategic subject only — never coverage, locations, gaps or performance against particular attacks.
Why it matters
Whether a state can protect its cities, energy system and infrastructure shapes civilian life, economic function and the political room a government has to manoeuvre.
Common confusion
Air defence is not a shield: no system covers everything, and interception claims made during a war are among the least verifiable figures published. Vigil reports them as claims, with confidence stated, rather than as measured fact.
Blockade
Cutting off a territory's access to trade, supply or movement, usually by sea or land. In international law a blockade has a specific legal character; in ordinary usage the word is applied far more loosely.
Why it matters
Blockades act on economies and civilian populations rather than on forces directly, so their effects are read in shipping volumes, prices, supply and humanitarian conditions.
Common confusion
The word is often applied to measures that are formally something else — inspections, insurance restrictions, port closures, or exercises that suspend traffic. What a measure is called, what it does, and what legal status it carries are three separate questions.
Deterrence
Discouraging an action by making its expected costs or risks outweigh its expected gains. Vigil treats deterrence as a relationship between actors' judgements, not as a capability a state simply possesses.
Why it matters
Much of the pressure in modern flashpoints concerns maintaining or testing deterrence rather than fighting, so how credible it appears is itself a strategic fact worth tracking.
Common confusion
Deterrence cannot be measured directly: when it works, nothing happens — and nothing happening is also what an absence of intent looks like. It also depends on what the other side believes, so capability without credibility deters little.
Force structure
How armed forces are organised — services and branches, types of formation, and how those parts are intended to fit together. Vigil describes force structure at broad, publicly documented and historical level only.
Why it matters
Structure shows what a military is built to do, and it changes slowly, so it explains capabilities and constraints more reliably than any single engagement does.
Common confusion
Structure on paper is not strength in the field. Formations vary enormously in equipment, manning and condition, and an organisational chart says nothing about current location, readiness or activity — none of which Vigil publishes.
Order of battle
A structured description of how forces are organised and subordinated. Vigil uses the concept only in its broad, historical and reference sense — the site publishes no current dispositions, strengths or locations.
Why it matters
Knowing how forces are grouped and commanded is what allows organisational reporting to be read carefully rather than taken at face value.
Common confusion
Public order-of-battle reference is not a current picture. Open sources lag, formations are reorganised, renamed and rebuilt, and wartime reporting about them is shaped deliberately by both sides. Vigil's Force Atlas is a structural and historical record, not an operational one.
Quarantine
A term for selective interdiction of certain traffic, historically chosen to avoid the legal implications of declaring a blockade.
Why it matters
The choice of word is itself a political and legal signal — about how far a state intends to go, and about how it wants the action understood by others.
Common confusion
The distinction is more legal and rhetorical than practical: an action described as a quarantine can have blockade-like effects on shipping and supply. In practice the boundary is blurry and contested.
Strategic depth
The space, distance and redundancy between a state's exposed edges and the things it cannot afford to lose — capitals, industry, supply routes and population centres.
Why it matters
Depth shapes how much disruption a state can absorb before its position becomes untenable, and it is one reason geography still matters in an era of long-range weapons.
Common confusion
Depth is not only territorial. Diversified supply routes, dispersed industry, stockpiles and external partners all provide it — and a physically large state can lack depth wherever its critical assets are concentrated.
Humanitarian and society
The civilian consequences of conflict and the systems that absorb them.
Civil resilience
A society's capacity to keep functioning under sustained disruption — energy, water, communications, health, transport, administration and public confidence.
Why it matters
In modern conflicts pressure is frequently applied to civilian systems rather than to forces, so resilience helps explain why some societies keep working under conditions that would paralyse others.
Common confusion
Resilience is not endurance without cost. Populations described as resilient are absorbing serious, cumulative damage, and describing that capacity is never a claim that the pressure is tolerable or sustainable.
Civilian infrastructure
The systems civilian life depends on — power generation and transmission, water, heating, hospitals, schools, telecommunications and transport.
Why it matters
Damage to these systems is cumulative and often seasonal, and it drives displacement, economic loss and public-health consequences long after any individual strike.
Common confusion
Some infrastructure serves both civilian and military purposes, and parties to conflicts routinely invoke that overlap. Vigil reports damage and its effects with sources and confidence, and does not adjudicate the lawfulness of individual attacks.
Displacement
The forced movement of people from their homes — within their own country (internally displaced) or across a border (refugees). The distinction determines which legal protections and which institutions apply.
Why it matters
Displacement is among the most durable consequences of conflict: it reshapes demography, strains neighbouring states, and becomes a central question in any settlement.
Common confusion
Displacement figures are estimates, frequently revised, and rarely comparable between sources, which count different things over different periods. Movement is also not one-way — return, repeat displacement and seasonal movement are common.
Humanitarian corridor
A negotiated arrangement allowing civilians to leave, or aid to enter, a specific area for a defined period.
Why it matters
Corridors are often the only formal mechanism connecting a besieged or cut-off population to the outside, so whether they exist — and whether they hold — is a direct measure of civilian conditions.
Common confusion
An announced corridor is not a functioning one. Corridors depend on agreement from every armed actor along the route, they frequently fail or are used as leverage, and their announcement can serve political purposes on either side.
Economy and geography
How conflict moves through trade, routes, resources and physical space.
Access
Whether people, goods, aid or officials can actually reach a place — physically, safely, and with the permissions required by whoever controls the route.
Why it matters
Access determines both what can be delivered and what can be known. Where access is poor, aid and information thin out together, and the absence of reporting is easily mistaken for the absence of events.
Common confusion
Access is not the same as control: a government may control an area that aid organisations cannot reach, and an area outside government control may be accessible through local agreement. Denied access is also a deliberate instrument, not only a by-product of fighting.
Maritime access
The ability to move ships, trade and supply through particular waters — a question of geography, law, insurance and risk as much as of naval strength.
Why it matters
Most trade moves by sea, so maritime access is the link between a distant conflict and shipping costs, energy prices and food supply elsewhere.
Common confusion
Access is rarely fully open or fully closed. It is usually degraded — through insurance costs, longer routes, rerouted traffic or fewer port calls — and those effects appear in commercial data well before any formal announcement.
Sanctions
Restrictions imposed by states or organisations on trade, finance, technology, transport or named individuals and entities, intended to change behaviour or limit capability.
Why it matters
Sanctions are the main non-military instrument used in contemporary conflicts. Their design — what is restricted, by whom, and how enforcement actually works — matters far more than the headline announcement.
Common confusion
Sanctions are rarely a switch. Effects are slow and uneven, and are often absorbed through re-routing, intermediaries and substitution. Separating their impact from war, currency movements and other shocks is genuinely difficult, and confident single-cause claims should be treated carefully.
Strategic chokepoint
A narrow point in a trade or transport route — a strait, canal, pipeline junction, rail corridor or major port — through which a large share of flow is concentrated.
Why it matters
Chokepoints turn local incidents into global economic events, because disruption at a single point can move prices and supply far from the conflict itself.
Common confusion
Concentration is not the same as vulnerability, and disruption is not the same as closure. Alternatives usually exist but cost time and money — and that cost, rather than any stoppage, is where most of the real economic effect appears.
Territorial control
The ability to hold and administer ground — to remain present, to exclude others, and to exercise authority over the people living there.
Why it matters
Control determines who governs daily life, who can move goods and aid, and what each party actually holds when negotiations begin.
Common confusion
Control is not binary, and it is not the same as presence, influence or the reach of weapons. An actor may be able to strike an area, or move through it, without administering it — which is why Vigil's maps distinguish administration, influence and activity instead of colouring in territory.
Where this fits
The glossary explains the language. Theconflict modules show the cases, and their developments briefs record what changed and when. If a definition here is unclear, misleading or contested in a way this page does not acknowledge, that is a correction we want to make.