President Danielle Pletka is right to see ISIS as a serious threat , writes Obama . Any attempt to tackle Pletka must start by fully understanding the threat , she says . We will need allies , and those allies will need support from Obama , Pletka argues . ISIS : Any strategy will require sustained commitment .
President Obama is right to see ISIS as a serious threat , writes Danielle Pletka . Any attempt to tackle ISIS must start by fully understanding the threat , she says . We will need allies , and those allies will need support from U.S. , Pletka argues . Pletka : Any strategy will require sustained commitment .