US warplanes were part of an action to defend the oil refining city of Baiji from the group yesterday. Today, a major IS offensive is underway in Anbar Province.
Many who were involved in the US war effort in Iraq continue to insist that the country fell apart because of Obama's failings. There is little evidence to support them.
Fierce fighting is underway to wrest back all of the Iraqi city of Tikrit from the so-called Islamic State. But after a victory, avoiding reprisals on Sunni residents by Shiite militias won't be easy.
Oil revenues are declining and the flow of foreign jihadists may be slowing. Airstrikes in Syria by a US-led coalition come as Iraqi forces continue to battle IS in northern Iraq.
US officials worry that Iran's major role in the fight against IS in Iraq could fuel Shiite-Sunni tensions and drive more Sunni Arabs into the arms of the jihadis.
Iraq is attacking Tikrit from the north and south in its largest counteroffensive yet against the Islamic State. But the use of Shiite militias could prove problematic.
The US is at war with the Islamic State. A look at some opinions on how to successfully fight the group, and the risks that come with that.
A look at what that means for the US strategy in Iraq, and for Iraq's future.
The Obama administration has long advocated a more inclusive government in Baghdad. Shiite Prime Minister Haider al-Abadi still has much to do.
Its new hostage video calls on Japan, whose prime minister is touring the Middle East, to ends its 'foolish' support of the US-led campaign against Islamic State, and marks the first time the group has demanded cash in a video.