The Dramatic Gains ISIS Has Made in Iraq

Islamic militants have isolated thousands of Kurds in northern Iraq.

During those weeks, ISIS has seized cities across Iraq and has forced thousands to flee -- including many cities occupied by Kurds in the northern part of the country and Christian villages.

Wave of Iraqi Executions Feared in ISIS Takeover

Why Control of a Terrifying Dam in Iraq Is Life or Death for Half Million People

This week, ISIS forces have surrounded and isolated a group of some 40,000 Yazidis, an ethnic group of Kurds in the north that fled their villages and are stranded on a mountain top with no food or water.

The Iraqi military has continued with airstrikes targeting ISIS fighters in regions of the country the militant group has seized, but has failed to fend them off. At the same time, Kurdish officials also said they would launch a counteroffensive.

There are also conflicting reports out today about whether the extremist group ISIS has taken control over Iraq's largest and most dangerous dam, which Iraqi officials had previously said was safe under the protection of Kurdish forces.

The question of control over the dam is critical because if the dam were to break, either accidentally or purposefully, it could flood Mosul.