Fox News strategic analyst Lt. Col. Ralph Peters (Ret.) said the United States "must act" now against what he calls a Holocaust against Christians in the Middle East.

Activist groups said Tuesday that as many as 90 Assyrian Christians, including women and children, were taken hostage after ISIS overran several small villages in northeast Syria.

The Britain-based Syrian Observatory for Human Rights, which relies on a network of activists inside Syria, reported that 90 people have been abducted.

The reported kidnappings come a week after ISIS released a video from Libya showing the beheadings of 21 Egyptian Christians. That group only included men, not women and children.

Peters echoed the sentiments of Bill O'Reilly on "America's Newsroom" today, chiding the State Department for its demand that ISIS free the hostages immediately. 

"Do they really think Islamic State pays much attention to Jen Psaki? You've got to act. You cannot cry crocodile tears and pretend that somehow this is going to magically go away. ... This is the extermination of a 2,000-year-old civilization, and the world does nothing," he said, calling the administration's statements about a large coalition against ISIS a "lie."

Peters said the killings of Christians are occurring on a larger scale than previous genocides in Rwanda and in the Balkans.

"After the Holocaust of World War II, the world said 'never again.' Bill O'Reilly is right, it's happening again. It is a genuine Holocaust against Christians," he said, adding that President Obama is doing nothing to stop it. 

"He is the reincarnation of Pontius Pilate, washing his hands of this. But the blood's not coming off." 

Watch the full interview above.