The former chief of staff to Israeli Prime Minister Benjamin Netanyahu said Saturday an Israeli strike against Iran’s nuclear facilities is “imminent.”

Naftali Bennett appeared on Fox News’ “Huckabee” and painted a dire picture of a world with a nuclear Iran, saying Israel will not hesitate to take action if necessary — and that time is of the essence.

“We’re at the very last moment. This is going to be the first time in history that a maniacal, radical Islamic regime will acquire a nuclear weapon,” he said. “The day after they have a bomb will be a different day for the entire world.”

On Saturday, a report emerged saying Iran is headed for a major nuclear expansion, the same day as reports that Iranian warships had passed through the Suez Canal.

Calling Iran “an octopus of terror,” Bennett told host Mike Huckabee in no uncertain terms: “We have to stop them, and yes, it is imminent.”

Huckabee questioned whether Israel would be able to sustain a “hot war” against Iran, to which Bennett replied, “if necessary we will.”

“Obviously America has much more capabilities of sustaining an attack on Iran but right now as it stands most of Iran’s facilities are still vulnerable. They’re moving their facilities underground so that’s why we’re at the very last moment,” he said. “Right now we could still take them out based on public knowledge but a year from now it’s going to be a whole different ballgame. That’s why over the next 12 months the world has to act.”

He was harshly critical of President Barack Obama, charging that the U.S. administration has “squandered the ability to impose crippling and even paralyzing sanctions on Iran. The sanctions that are being imposed now are too little, too late.”

Bennett said many Israelis are concerned about whether they would have America’s support if they strike.

“We do not know for sure now that America will be there for us in this current administration and that’s why we are concerned,” Bennett said. “We’re being told, ‘Israel do not attack Iran.’ But how can we not do it? We don’t know what we’re going to see 12 months from now, we have no guarantee that others will take care of it. If necessary we’ll do the job for the world but please, please don’t tell us to stand back and just wait and I guess pray for something good to happen.”

“We’ve got to do the job. If Obama won’t do it, please let Israel do the job,” he said.