“A decade of war is now ending,” U.S. President Barack Obama declared Monday. Maybe that’s true in America, but it isn’t true anywhere else. Extremists are still plotting acts of terror. Authoritarian and autocratic regimes are still using violence to preserve their power. The United States can step back from international conflicts, but that won’t make them disappear. Fortunately, there is another power that shares America’s economic and political values, that possesses sophisticated military technology and is also very interested in stopping the progress of fanatical movements, especially in North Africa and the Middle East. That power is Europe. …...