Two decades after the initial invasion, U.S. forces have officially ended their military presence in Iraq. The withdrawal, finalized recently, marks the conclusion of a long and complex chapter for both nations, leaving Iraq facing an uncertain future.

The departure comes after years of shifting political landscapes and evolving U.S. objectives in the region. The initial 2003 invasion aimed to topple Saddam Hussein's regime, but it ushered in a protracted period of conflict, sectarian violence, and the rise of insurgent groups.

Reactions within Iraq to the withdrawal are varied. Some citizens are celebrating the end of a foreign military occupation that they associate with significant bloodshed and instability. Others, however, express deep concern over what the future holds, particularly regarding the country's security and its delicate geopolitical position.

The implications of the U.S. withdrawal are significant for Iraq's internal stability and its relationship with regional powers, notably Iran. The vacuum left by American forces could potentially be filled by competing influences, raising questions about the nation's ability to govern itself independently.

Analysts suggest that the withdrawal could embolden Iran's influence in Iraq, a concern shared by many Iraqis who fear becoming a battleground for proxy conflicts. The extent to which Iraqi security forces can maintain control and prevent a resurgence of extremist elements remains a critical question.

Historically, the U.S. military engagement in Iraq has been marked by significant shifts in strategy and troop numbers. Following the initial invasion, a surge in troop levels occurred in the mid-2000s, followed by a significant drawdown and then a renewed presence to combat the Islamic State group.

This latest withdrawal concludes a chapter that began with the stated goal of establishing a stable democracy. While Iraq has held elections and has a functioning government, challenges related to corruption, economic development, and internal security persist.

As U.S. forces depart, the focus now shifts to Iraq's own capacity to manage its security challenges and navigate its complex regional relationships. The long-term consequences of this withdrawal for Iraq and the wider Middle East are yet to unfold.