Stockholm International Peace Research Institute (SIPRI) (швед. Stockholms internationella fredsforskningsinstitut)

International Aviation Management Training Institute

Combat Vehicle 90 (CV90 / CV-90) / (швед. Stridsfordon 90 / Strf 90)

Institute for the Study of War (ISW)

military institute

Royal United Services Institute for defense and Security Studies (RUSI)

United States Naval Institute (USNI)

U.S. Naval Institute

Institute of Cadre Management Suzhou

institute an award

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

Cooperative Research and Development Agreements (CRADA)

Defense Advanced Research Projects Agency (DARPA)

director of defense research and engineering

indigenous research

military space research

military training and research centre

NATO Undersea Research Centre

Naval Research Laboratory (NRL)

office of naval research

RDX (Research Department eXplosive/Royal Demolition eXplosive), hexogen

research

research and development (R&D)

research and intelligence / technology protection (RITP)

research and technology (R&T)

Research and Technology Agency (RTA)

Research and Technology Board (RTB)

Research and Technology Organization (RTO)

research laboratory

research, development, test, and evaluation (RDT&E)

US Army Medical Materiel and Research Command (USAMRMC)

Advisory Group for Aerospace Research and Development (AGARD)