ISIS has pulled off the impossible: It has gotten Obama to use force after promising to pull us out of Iraq. Lionel Beehner asks: Is that a good thing?

Chris Miller writes that U.S. airstrikes to protect Kurds and Yazidis is the right thing to do, and we have a blueprint from 1991 on how to protect them and repel ISIS.

U.S. military advisors have a long history of "mission creep." Don't be surprised if the ones redeployed to Iraq serve in a combat role against ISIS, writes Chris Miller.