Sen. Lindsey Graham (R-SC) did not hold back on Sunday in expressing his outrage at President Barack Obama's refusal to send ground troops to confront ISIS, warning that the "gates of hell" would "spill out onto the world."

"It's going to take an army to beat an army, and this idea [that] we'll never have any boots on the ground to defeat them in Syria is fantasy, and all this has come home to roost over the last three years of incompetent decisions," Graham told Fox News host John Roberts. "It's delusional in the way that they approach this."

The senior senator from South Carolina said that ISIS was similar to Nazi Germany, but instead of a master race, they were "a radical Islamic army that's pushing the theory of a master religion."

"It's about protecting millions of people throughout the world from a radical Islamic army," he added. "They're intending to come here. So, I will not let this president suggest to the American people we can outsource our security and this is not about our safety. There is no way in hell you can form an army in Syria to go after ISIL without a substantial American component."

"This is a war we're fighting! This is not a counter-terrorism operation! This is not Somalia, this is not Yemen! This is a turning point in the war on terror! Our strategy will fail yet again! This president needs to rise to the occasion before we all get killed back here at home!"

Graham concluded by proclaiming that "the consequences of losing" were dire.

"They will open the gates of hell to spill out on the world," he said. "This is not a Sunni versus Sunni problem. This is ISIL versus mankind."