Despite the role they played in achieving a nuclear deal with Iran, sanctions continue to face a steep challenge in arresting Russian adventurism in Ukraine. A year after their adoption in July 2014, it remains an open question whether the sanctions adopted by the European Union and United States will be effective. While sanctions against Moscow will never be as ambitious as they were against Iran, Richard Nephew and Simond de Galbert argue that they can still make a difference toward creating a more stable situation and giving Ukraine time to become a more successful, politically independent country. But to do that, sanctions require more realistic targeted objectives and time.