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 9/11 terror attacks memorial tribute in Light was projected over the New York City skyline on September 8 ahead of September 11, illuminating the area around the Brooklyn Bridge, Lower Manhattan and One World Trade Centre. (PICS/ AFP)