
Mutual Defense Assistance Office - Japan
Mission
The Mutual Defense Assistance Office (MDAO) is a joint service organization that facilitates defense
equipment and technology exchanges between the governments and industries of Japan and the
United States. Specifically, we:
- Promote a robust security assistance program through:
- Foreign Military Sales (FMS)
- Co-production and licensed production arrangements
- Equipment and logistical support
- Direct Commercial Sales (DCS) by US industry
- Military education and training
- Oversee cooperative armaments/ R&D efforts through:
- Cooperative technology projects
- Data Exchange Agreements (DEA)
- Engineer and Scientist Exchange Program (ESEP)
- Serve as a conduit between Japan MOD and US Government agencies
Successfully accomplishing our mission will help us meet
the national objectives of:
- Strengthening the U.S.-Japan security relationship
- Enhancing interoperability
- Assisting U.S. industry
- Effectively using limited U.S. & Japanese resources
- Improving the capabilities of the Japan Self Defense Forces (JSDF)


MDAO Organization