The US military announced Wednesday that it completed the withdrawal of all American troops from Iraq, ending a 12-year mission to fight the Islamic State group and prompting President Donald Trump to hail the conclusion of "a very expensive excursion into Hell." The last US troops left an air base in northern Iraq under a deal between Baghdad and Washington. (Pics/AFP)

The US military announced on Wednesday that it has completed the withdrawal of its troops from Iraq, ending a 12-year mission to fight the Islamic State group.The last US troops left the last air base where they had been present in northern Iraq under an agreement between Baghdad and Washington. (PIC/AFP)