U.S. forces have completed their long-awaited withdrawal from Iraq, ending two decades of military presence that left hundreds of thousands dead and divided Iraqi opinion. Iraqis marked the departure with celebration but also deep anxiety about future security, as experts warn the exit could create a power vacuum. Iran-backed militias and ISIS remain active in the region, with recent incidents highlighting ongoing instability. Meanwhile, the U.S. military has announced internal shake-ups, cutting senior leadership posts by 20%. Across the world, Spain’s government moves to freeze evictions after an elderly woman’s case sparks mass protests, and Myanmar reels from a deadly airstrike. See today’s full World Briefing for the developments shaping global headlines.