grey-zone / grey zone (international relations)

civil-military relations

military-to-military relations

public relations (PR)

bilateral relations

hit relations with

Rankine-Hugoniot relations

European Council on Foreign Relations (ECFR)

Grey Eagle (MQ-1C)

grey infiltration

man in grey

MH-139 Grey Wolf (MH - Missionized / Multi-Mission Helicopter)

international humanitarian law (See international law of armed conflict)

International legion for the Defence of Ukraine (ILDU) / International Legion of Territorial Defence of Ukraine / Ukrainian Foreign Legion

International Military Sports Council (IMSC) / Conseil International du Sport Militaire (CISM)    

grid zone / grid-zone

zone standard time (zone time) (ZST)

killing zone / kill zone

grid zone designation / Grid Zone Designator

hundred-per-cent zone (one-hundred-per-cent zone)

no-fire zone / no fire zone

flight restriction zone / flight restricted zone (FRZ)

all-embracing system of international security

Bureau of International Narcotics Matters

comprehensive system of international security

international agencies and alliances

International Air Transport Association (IATA)

international alliance

international arrest warrant

International Civil Aviation Organization (ICAO)

international civil presence

International Civilian Mission in Haïti (MICIVIH)

International Committee of the Red Cross (ICRC)