Amidst the ongoing and tense conflict between Tehran and Washington, the United States has officially completed its military withdrawal from Iraq this Wednesday. This marks the conclusion of a long and eventful chapter of American military presence that spanned 23 years, beginning with the fall of Saddam Hussein's government in 2003. While diplomatic and bilateral security relations between the two nations have not been entirely severed, this significant shift is expected to bring about a major geopolitical transformation in the power balance of West Asia.
The 23 Year Journey: From Invasion to Withdrawal
The US-led forces launched an invasion of Iraq on March 20, 2003, which resulted in the swift collapse of Saddam Hussein's regime. Following the invasion, American influence in the region grew steadily. By 2007, the US military deployment reached its peak, with more than 170,000 American soldiers stationed across Iraq. This period represented the height of American military involvement in the country's internal security and governance structures.
However, the journey wasn't a continuous one. In December 2011, the United States withdrew its final combat troops, seemingly ending its military role. This absence was short-lived as the rapid and violent rise of the Islamic State (ISIS) in 2014 forced the US military to return to Iraq under Operation Inherent Resolve. This mission was focused on defeating the caliphate and providing support to Iraqi security forces.
The 2024 Agreement and Final Exit
The path to the current withdrawal was paved by an agreement reached between Washington and Baghdad in 2024. Under this agreement, it was decided to phase out the mission of the US-led coalition, while the final deadline for this phased withdrawal was set for September 30, 2026. In the final stages of this exit, approximately 1,500 to 2,500 US and coalition personnel remained in the country. As of today, these personnel have also left Iraq, fulfilling the terms of the withdrawal ahead of the ultimate deadline.
Major Security Challenges Ahead
The final departure of US troops leaves Iraq facing three primary and serious security challenges. The first concerns Iran-backed militias and regional influence. For a long time, the American military presence was viewed as a significant deterrent against Iran's regional ambitions. With the US withdrawal, Tehran and its supported armed groups may find a greater opportunity to strengthen their influence within Iraq's political and security frameworks. The Iraqi government now faces the daunting task of bringing these non-state armed groups' weapons under state control.
The second challenge is the persistent threat of ISIS sleeper cells. Although ISIS no longer controls territory, its sleeper cells remain active and capable of launching attacks. With the cessation of US intelligence, drone surveillance, and logistical support, Iraqi security forces will need to take more stringent and independent measures in counter-terrorism operations. To mitigate this, the US plans to operate its regional surveillance and counter-terrorism framework from Jordan.
Changes in Air Defense Capabilities
The third major challenge involves the shift in air defense capabilities. With the departure of the US military, Patriot air defense systems and radar installations have been removed from Erbil in Iraqi Kurdistan and other strategic locations. In the context of the ongoing Iran-US conflict and the threat of aerial attacks, Iraq must now rapidly strengthen its own national integrated air defense system to protect its sovereignty, while this withdrawal isn't merely a movement of troops; it's a new chapter in Iraq's domestic politics and Middle Eastern geopolitics. Over these two decades of war, approximately 4,500 US soldiers lost their lives. Now, the focus shifts to how the Baghdad government will manage its sovereignty, internal security, and regional balance, or whether Iranian dominance will become the defining feature of the region.