Over the last years, missile defense has resurfaced as a major feature of the strategic debate in the United States and among its close allies. In 2010, the North Atlantic Treaty Organization Summit of Heads of State saw intense discussions among transatlantic partners on the strategic value of missile defense alongside the traditional deterrence means of the Alliance. But if these transatlantic debates are for the most part still speculative, for many years, one close American ally has already faced the concrete and immediate challenge of defending its territory against missiles and rockets-Israel. As demonstrated during the last clashes between the Israeli Defense Forces and Palestinian factions (2012 and 2014), missile defense is now a pillar of Israel's strategic culture. Understanding this evolution demands an in-depth look at its political, military, and technical ramifications. That is the very purpose of this new monograph by Dr. Jean-Loup Samaan.