29 November 2024

A Critical Analysis of the US Army’s Security Force Assistance Mission During the War on Terror

John A. Nagl

Key Findings

The U.S. Army struggled to build capable host-nation security forces in Iraq and Afghanistan because it did not give those security force assistance (SFA) missions the priority and support they deserved.

Both the selection and training of U.S. advisors were highly flawed. The Army also struggled to ensure the selection of high-quality personnel into the host-nation forces. Much of the SFA effort was conducted in an ad hoc manner, without sufficient funding or strategic prioritization.

Today, the Army has corrected many of the issues that plagued its SFA formations during the War on Terror by creating a permanent Security Force Assistance Command and six Security Force Assistance Brigades. It is essential for the Army to maintain and support these formations to ensure that the bitter lessons of Iraq and Afghanistan are not forgotten.

Introduction

In 2014, the Iraqi army, into which tens of billions of American taxpayer dollars had been invested, collapsed in the face of an offensive by the terror group the Islamic State in Iraq and Syria. Only a major coalition intervention prevented the fall of Baghdad. In 2021, within just a few months of the American withdrawal from Afghanistan, the Afghan National Army (ANA) collapsed in the face of an offensive by the Taliban. Between 2002 and 2021, some $88 billion had been invested in the ANA. In both cases, the U.S. military had devoted vast amounts of time and money to the training of the host-nation’s security forces. Yet, with a few notable exceptions (the Iraqi Counter Terrorism Force and some units of Afghan commandos), both armies severely underperformed once they could no longer rely on extensive American air, ground, and logistical support. Why did the U.S. effort to train and advise these forces fail so spectacularly?

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