Trump, Pence 'Don't Know What They're Talking About' With ISIS, Biden Says

— -- Vice President Joe Biden said Republican presidential nominee Donald Trump and his running mate Mike Pence "don't know what they're talking about" when it comes to addressing the threats posed by ISIS and other terrorists groups.

Responding to Republican criticism that Democrats are avoiding talking about ISIS at their national convention this week, Biden said Trump and Pence may talk a lot about the issue, but they have offered no clear plan for what they would do if elected.

Worse, Biden said, Trump has proposed breaking up international alliances, such as the North Atlantic Treaty Organization (NATO), which he said can help address the problem.

"We have the single most significant homeland security of any country in the world. We have the finest Special Forces in the world. And what are they doing, Pence and and uh, and Trump? What they're doing is they're breaking up our alliances," Biden said in an interview with George Stephanopoulos. "These guys don't know what they're talking about."

Pence chastised Democrats today, arguing that of the 61 people who spoke at the opening day of the convention Monday, not one mentioned ISIS.

Biden brushed aside Pence’s comment, noting there are several more days of the convention to come.

"Well that could be, but I mean there's a lot more speakers to come," said Biden, who is set to speak at the convention on Wednesday.

ISIS has increasingly become a threat both at home and overseas through attacks carried out by members of the terrorist group or by those who say they are inspired by its message.

Trump has used recent attacks to warn the plan isn’t working and threats to the U.S. homeland will only grow. On the campaign trail he charges that Hillary Clinton will provide more of the same if elected this fall. He has previously elaborated on what he would do to defeat ISIS, including remarks on the campaign trail that he he would go after ISIS-controlled oil fields and "bomb the s--- out of 'em." He has said his strategy would include marking targets in Syria and Iraq.

The Obama administration argues it is taking an aggressive approach to ISIS overseas, including supporting operations against the group in Syria and Iraq.

Clinton and her running mate, Sen. Tim Kaine (D-Va.), are expected to discuss the issue of terrorism when they speak at the convention later this week.