Book

Tanker War in the Gulf: Operation Earnest Will, Diplomacy and Seapower in Practice

2026

Synopsis

The past four decades have seen a number of US military interventions in the Middle East, but only one of them is retrospectively seen as a success: Operation Earnest Will, the escort of Kuwaiti tankers through the Persian Gulf in 1987 and 1988. As an officer who participated in this operation who then served in the region as a diplomat, Tom Duffy offers a unique perspective on Earnest Will. He argues that the fact that Earnest Will was a limited war and that it was fought with navies was key to its success. Forty years later, this operation remains relevant to security policy, especially with regard to a potential conflict with China.

This new and descriptive account discusses every aspect of the operation, including the role of other navies in the Gulf at the time—especially the Royal Navy, ships operating in conjunction with the Western European Union, and the Soviet navy. Relevant strategic and political elements are covered, such as parallel activities in the UN Security Council and the role of UN Security Council Resolutions in ending the war. 

Considering the short-, medium-, and long-term impacts of Operation Earnest Will, Duffy explains how this maritime, limited war option illustrates key concepts from classical strategic thinkers, and why it is a demonstrably effective way to advance political goals and an example to keep in mind when facing future challenges, both in the Middle East as well as East Asia.

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A Poisoned Chalice: The U.S. Navy in the Persian Gulf, 1987–1988

In the 1980s, Iraq and Iran attacked each other’s petroleum industry in the Persian Gulf in what became known as the Tanker War. In an effort to restore stability to the world’s oil markets, the United States deployed a U.S. Navy flotilla to escort convoys of oil tankers in an operation dubbed Earne...

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