Conflicting U.S. Objectives in Weapon System Codevelopment

The FS-X Case

by Mark A. Lorell

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This research brief describes work documented in Troubled Partnership: An Assessment of U.S.-Japan Collaboration on the FS-X Fighter (MR-612/1-AF) and Troubled Partnership: A History of U.S.-Japan Collaboration on the FS-X Fighter (MR-612/2-AF).

Excerpt: For various reasons, the United States has generally tried to discourage its allies from developing their own major weapon systems. Perhaps the most prominent example of this policy was America's insistence on cooperative development in the case of Japan's FS-X fighter aircraft. Did the outcome of the divisive struggle over the FS-X serve U.S. aims? What can be learned for future interaction on the FS-X program in particular and cooperative development in general? Recent Project AIR FORCE research by Mark Lorell sought to answer these questions.

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