Kerry says that the U.S. needs to combat ISIS without putting boots on the ground:
We need to attack them in ways that prevent them from taking over territory, to bolster the Iraqi security forces and others in the region who are prepared to take them on, without committing troops of our own.
It may take years to defeat the group:
We’re convinced in the days ahead we have the ability to destroy Isis. It may take a year, it may take two years, it may take three years. But we are determined.