An Iraqi federal police member waves his country's national flag as he celebrates in the Old City of Mosul on July 9, 2017 after the government's announcement of the 'liberation' of the embattled city.© AHMAD AL-RUBAYE/AFP/Getty Images An Iraqi federal police member waves his country’s national flag as he celebrates in the Old City of Mosul on July 9, 2017 after the government’s announcement of the ‘liberation’ of the embattled city. (Bloomberg) — Iraqi Prime Minister Haider al-Abadi traveled to Mosul to declare it liberated from Islamic State, three years after the city’s abrupt fall to the jihadists alerted the world to the group’s growing strength, territorial ambitions and barbarity.