Driven by dramatically reduced defense budgets and spiraling weapons systems costs, defense firms on both sides of the Atlantic are seeking increased access to each other’s markets through collaborations and other ventures. This book examines the current European defense market, focusing on the countries with the largest defense industries in Europe. While European firms have become more competitive worldwide, they lag U.S. companies in overall size and U.S. firms seem to dominate sales in all defense market segments except land systems.