The devastation caused by the IS forces is extensive. There are bombed out buildings, crushed cars and explosives that were being lined up to be used inside a school.
Here's a recap of all the events that shaped the world from the previous week.
The bombing is the deadliest in Iraq since Iraqi security forces last month dislodged Islamic State terrorists from Falluja, the IS stronghold just west of Baghdad that had served as a launch pad for such terror attacks.
After a month-long buildup, the last urban stronghold of Islamic State in Iraq has for several days been almost completely surrounded by a 30,000-strong force.
United States President-elect Donald Trump has formally nominated James Mattis, a retired 4-star Marine Corps general who has long voiced concerns about the threat posed by Iran, as the Defence Secretary to replace Ashton Carter.