July 1, 2016
Abandon Ship: Interagency Decisionmaking during the Mayaguez Incident
In the spring of 1975, Cambodia’s communist Khmer Rouge government seized a U.S. merchant ship, the SS Mayaguez, leading the United States to mount a joint operation to rescue the ship and its crew. The focus of this effort became an assault on Koh Tang, a small island in the Gulf of Thailand approximately 30 miles from the Cambodian mainland.1 Despite the notable evolutions in joint and interagency doctrine in the more than 40 years since this incident, it remains strikingly relevant because of the nature of the challenges it presented to interagency decisionmakers: a short timeline, limited intelligence, forces not tailored to the mission, an unpredictable opponent, and fevered public interest. At the time, the “Mayaguez Incident” was generally viewed as a success. A more sober review, however, shows that the military operation nearly ended in disaster. A close examination of interagency decisionmaking reveals a series of pitfalls, including intelligence failures, poor interagency communication, and incomplete assessment of risk. These factors led the National Security Council (NSC) to make decisions that had little chance of furthering President Gerald Ford’s foreign policy objectives and that placed U.S. forces at grave risk. Military and civilian leaders would do well to review the lessons of this crisis, lest they make the same mistakes in the future.