French president François Hollande's recent two-day state visit to Washington was intended as a "shot in the arm" for the beleaguered French leader as well as an acknowledgment of strengthening ties, says CFR's Europe expert Charles A. Kupchan. Kupchan says that France has emerged as the United States' strongest European security partner, supporting U.S. policy toward Syria and Iran and taking firm military action on its own against militants in Mali.