declare war

Formally begin conflict

To declare war is to formally announce the start of armed conflict against another nation or group.

Countries declare war through official governmental acts.

The phrase extends to any aggressive stance against a problem or opponent: The mayor declared war on corruption.

To declare war on someone informally means to openly oppose them.

diplomacy

ultimatum

Non-negotiable final terms

sanctions · embargo · sovereignty · envoys · summit · mediation · arbitration · casus belli · alliance · pact

military

mobilization

Organizing for action

troops · artillery · infantry · cavalry · frontline · reinforcements · deployment · conscription · maneuver · siege

hostility

escalation

Progressive increase in intensity

animosity · aggression · provocation · tensions · retaliation · vendetta · feud · strife · bellicosity · brinkmanship

proclamation

announcement

Public declaration of information

broadcast · statement · communique · formal · official · public · address · notification · resolution · decree

Categories
Opposites
diplomatic action

declare warmake peace

Resolve conflict between parties

military posture

declare warstand down

Withdraw from readiness

demobilize · disarm · surrender · capitulate · lay down arms

conflict trajectory

declare warde-escalate

Reduce intensity of conflict

reconcile · bury the hatchet · turn the other cheek

Family

declare, war, declares, declared, declaring, declaration, declarations, declarative, declaratory

Familiarity
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Known to kids · Used worldwide · Timeless · Negative · Everyday, not technical · Rated PG