Iraqi Prime Minister Haider al-Abadi congratulated Iraq’s armed forces on their victory over the Islamic State and mark the formal end of a bloody campaign that lasted nearly nine months, left much of Iraq’s second-largest city in ruins, killed thousands of people and displaced nearly a million more. The security forces in Mosul still face dangers, including ISIS sleeper cells and suicide bombers. And they must clear houses rigged with explosive booby traps so civilians can return and services can be restored. Nor is the broader fight over: Other cities and towns in Iraq remain under the militants’ control