By David Cortright

David Cortright argues why new economic sanctions on Russia and Iran will not work.

Sanctions are much in demand these days as a tool of American foreign policy.

Members of Congress want tough new sanctions against Russia for its interference in American elections. Sanctions will remain in place against North Korea, the White House says, until Pyongyang shows progress toward denuclearization. After tearing up the Iran nuclear accord, the Trump administration restored sanctions against Tehran in an effort to get a better deal on restricting its weapons and a change in its behavior. And even NATO ally Turkey faces sanctions for imprisoning several U.S. citizens and employees of its diplomatic mission.

Policymakers claim that sanctions are an effective means of achieving policy goals, but is that true? Are new measures against Moscow and Tehran likely to be successful?

Research on sanctions by myself and others has shown that they can sometimes be effective. But there are three key elements: allies, a willingness to enforce them and incentives to bargain. The absence of all three means they probably won’t work with Russia and Iran.

Unilateral sanctions rarely work 

Allies supporting and reinforcing sanctions are usually pivotal to making them stick.

Unilateral sanctions such as the proposed measures against Russia and Iran are seldom successful. Although the European Union has placed sanctions on Russia because of its actions in Ukraine, the latest legislative measures proposed in Congress would be unilateral.

In an increasingly globalized world, unilateral sanctions face huge obstacles – even when imposed by the largest economy. A landmark study published in the 1990s by the Peterson Institute for International Economics found that unilateral U.S. sanctions achieved their foreign policy goals only 13 percent of the time.

The rare instances when unilateral sanctions work involve countries that have extensive trade relations with the U.S., clearly not the case with Russia or IranRussia is low on the list of U.S. trading partners, and Iran has had virtually no economic or commercial relations with the U.S. Neither country is dependent on U.S. trade or likely to submit to American economic pressure.

In addition, when a country faces sanctions, it can often seek commercial ties elsewhere. This was the case with Cuba. When the U.S. imposed sanctions on its former trading partner after Fidel Castro came to power, Havana turned to Moscow for help and became a part of the communist bloc.

Iran, for its part, has diversified its economy in the face of sanctions from the U.S. and other Western countries, shifting trade to the East and increasingly selling oil and buying goods in China, India and other Asian countries.

Washington is responding to Tehran’s circumvention strategy by threatening to impose secondary sanctions against foreign companies that trade with Iran, barring them from doing business in the U.S. Extraterritorial sanctions such as these are opposed by other countries as a violation of international law.

European nations especially disagree with this approach and have vowed to maintain trading relations with Iran despite secondary sanctions. Russia and China also oppose the new U.S. policy.

Willingness to follow through

This raises a second factor that influences whether sanctions work: Is the country issuing the sanctions willing and able to assure compliance with those measures?

The prospect of losing Iran’s 2 million barrels of oil a day is already roiling global markets. To calm investors, the U.S. State Department quietly announced in early July that Washington would allow countries like China, India and Turkey to reduce oil imports from Iran “on a case-by-case” basis, signaling the U.S. will allow some states to maintain imports, thus limiting the impact of the sanctions.

In other words, the desire to mitigate the potential impact of new sanctions on global financial markets may outweigh the goals of imposing them in the first place.

A similar problem of weak compliance is affecting continued U.N. sanctions against North Korea. In the wake of the Trump-Kim summit and the president’s claim that Pyongyang is no longer a nuclear threat, China and Russia have shown reluctance to continue enforcing sanctions. They recently blocked an effort within the U.N. Security Council to condemn North Korean oil smuggling.

If the U.S. and major allies are unable or unwilling to pay the price of sanctions enforcement, effectiveness diminishes.

Coercion and compliance

A third factor affecting success is the need to combine sanctions with diplomatic bargaining.

My research with George Lopez, a professor emeritus of peace studies, shows that sanctions work best within a bargaining framework in which the imposition of coercive measures is combined with incentives for compliance.

The offer to lift sanctions can be an effective bargaining chip for persuading the targeted regime to accept compromise and alter its policies. This was the case in the 1995 Dayton Peace Agreement, when the offer to lift sanctions served as an inducement for Serbia to end its aggressive policies and accept a political settlement.

The irony in the case of Iran is that precisely this form of sanctions-based diplomacy was successful in achieving the 2015 nuclear deal. Rigorous U.S., U.N. and European Union sanctions were combined with an offer to lift them if Iran complied with demands to restrict its nuclear program and accept intrusive inspections. The International Atomic Energy Commission verified on 10 separate occasions from 2016 through the early part of 2018 that Iran kept its side of the bargain, and sanctions were removed.

The lonely road

For all these reasons, I believe the new U.S. policy of reimposing unilateral sanctions abandons a multilateral approach that was working in favor of a unilateral policy that has little chance of success.

The U.S. and EU sanctions on Russia for its policies in Ukraine may have some continuing effect, but the new measures under consideration in Congress are unlikely to have a major impact.

Policymakers may talk tough about threatening sanctions, but their policies are weak if they are unilateral and costly to implement. Sanctions work best when they are part of a multilateral diplomatic effort – like the Obama administration took on Iran – in which the offer to lift sanctions is used as an incentive to achieve a negotiated settlement.

The Trump administration may think that it can go it alone in foreign policy, but on sanctions, as on nonproliferation and other policies, multilateral cooperation is often the key to success.

This article was originally published on The Conversation and has been republished under a creative commons license. For the original, click here.

David Cortright is the Director of Policy Studies at the Kroc Institute for International Peace Studies at the University of Notre Dame. 

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Disclaimer: The ideas expressed in this article reflect the author’s views and not necessarily the views of The Big Q. 

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