US troops are gone from Iraq, but ISIS remains. What comes next?

US troops have officially departed from Iraq, leaving a security vacuum that Iraqi officials and security experts must now address. The primary focus remains on how the nation will effectively manage the persistent threat posed by remaining ISIS cells. Additionally, the government is weighing strategies to handle the influence of powerful Iran-aligned militias. These security challenges persist as the country transitions its defense strategy following the complete withdrawal of the American military forces.