The Islamic State (IS) was created due to the actions of Obama and his allies, Turkey and Saudi Arabia. Obama encouraged and helped the Muslim Brotherhood to overthrow several countries. Creation of a Caliphate has always been the mystical objective of the Brotherhood. His actions against IS have been ineffectual. Obama is a subversive, which means his intent is to undermine and overthrow the system, but his goals are secret. He will do only as much as he thinks necessary to be able to remain unexposed.
We should stop support of the jihadists in Syria trying to topple Assad and help Syria and Iraq destroy IS and the other jihadist terrorist groups. We do not need to send ground troops to Syria. IS would just use that as a recruiting tool to convince more jihadists from around the world to come and fight the Americans.