Missile Defense in and for Europe?

Abstract:

The United States' plan to place parts of its Missile Defense System in European countries, pursuant to bilateral agreements, has triggered a major political controversy in Germany.

However, important technical and strategic questions have been left out of this discussion. For example, to what extent is Europe really at risk of a missile attack from Iran (as the U.S. claims)? How would the planned missile defense system protect Europe?

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