According to JNS editor-in-chief Jonathan Tobin, at the heart of much of the opposition to the joint U.S.-Israel strikes on Iran is general ignorance about the fanatical nature of the Tehran Islamist terror regime. Rooted in religious fanaticism, their sponsorship of terrorism and nuclear ambitions are non-negotiable to a government of theocratic tyrants. That makes it imperative that Washington cease allowing them to delay until they get a weapon.

Tobin is joined in this week’s episode of Think Twice by Retired Israel Defense Forces General Yosef Kuperwasser, the director of the Jerusalem Institute for Strategy and Security. He says the answer to the question about why the regime underestimated President Donald Trump’s determination to stop them from continuing to seek a nuclear weapon and spread terrorism is rooted in its essential nature.

“They couldn't do anything else, because accepting the conditions put forward by the president would have portrayed them as weak, and they cannot afford to be seen weak at home,” says Kuperwasser. He added that they also are really committed to having this nuclear weapon and will never give it up. What’s more, they believed that isolationists within the administration would persuade Trump not to act with Israel to avert the threat. Kuperwasser pointed out that the mullahs’ interpretation of Islam also leads them to believe that it is permissible to deceive foes with compromises that they don’t intend to abide by, rendering more negotiations with Tehran pointless.

Kuperwasser also tempers optimism about the majority of the Iranian people using the U.S. and Israeli attacks on the regime to overthrow it. So long as the minority within the country that are still loyal to the theocrats have a monopoly on armed force and the opposition is deeply divided along ideological and sectarian lines, there is still a good chance that the Islamic government will survive.

Kuperwasser is also deeply worried by the willingness of many Americans on the left and the far right to blame Israel for the war. It is, he says, “a very strange situation where we are attacked from both sides of the aisle.” But he insists that Israel and its supporters must prioritize. “Our first priority is to make sure that the Iran terrorist regime is out of business.” It might, he says, cause Israel to pay a political price for achieving that end in the United States. But before that problem can be addressed, the existential threat from Iran to Israel as well as the West must be eliminated.