After decades of presence, US forces are set to exit Iraq, a move celebrated by Shiite groups but met with concern by Sunni leaders. A tribal leader in Fallujah expressed worries that Iraq is "not fully ready" to maintain its own security following the withdrawal. The departure of American troops is feared to create a power vacuum, potentially allowing Iran to expand its influence within the country. This vacuum also raises the specter of renewed ISIS attacks and instability. Many Iraqis fear the consequences of the US exit, despite decades of a complicated military presence. The withdrawal marks a significant shift in the security landscape of Iraq and the wider region.