The Pentagon claims that tens of thousands of ISIS fighters have been killed in the last two years.

FOX's Jon Decker has more from the White House:

According to a top U.S. Army general in Iraq, the number of ISIS fighters has dropped precipitously over the last 24 months.

Lt. Gen. Sean MacFarland spoke to reporters at a press briefing from Baghdad:

(MacFarland) "We estimate that over the past 11 months, we've killed about 25,000 enemy fighters. When you add that to the 20,000 estimated killed prior to our arrival, that's 45,000 enemies taken off the battlefield."

The first U.S. airstrikes against ISIS took place a little over two years ago.

At the White House, Jon Decker, FOX News.