Multifora
ABCA - Australian, British, Canadian, United States and New Zealand Armies
AUSCANNZUKUS - Australia, Canada, New Zealand, UK, US Navies C4
CCEB - Combined Communications and Electronics Board
TTCP - The Technical Cooperation Program
MIC - Multinational Interoperability Council

Other Interoperability Fora
EAG- European Air Group
CWID - Coalition Warrior Interoperability Program
MIP - Multilateral Interoperability Program
ISO - International Organization for Standardization
JAPCC - The Joint Air Power Competence Centre
ICCWG - Interoperability Configuration Control Working Group

NATO
North Atlantic Treaty Organization - Home Page
NSA - NATO Standardization Agency
ACT - NATO Allied Command Transformation