Israel has long been concerned that the “P5+1” powers would negotiate a bad deal with Iran. But the deal announced in Vienna is breathtaking in its concessions to an Iranian regime that is the foremost sponsor of terror in the world, is on a march of conquest in the Middle East, is responsible for the murder and maiming of thousands of U.S. soldiers, and vows and works to annihilate the one and only Jewish state.

There are four major problems with this deal. First, it leaves Iran with a vast nuclear infrastructure. This is not the hoped for “dismantle for dismantle” deal, in which the sanctions regime would be dismantled in exchange for the dismantling of Iran’s nuclear-weapons making capability. Rather, this deal leaves Iran’s nuclear capabilities essentially intact (the conversion of the Arak heavy-water facility being the notable exception). In fact, this deal allows Iran to improve those capabilities by conducting research and development on advanced centrifuges and building intercontinental ballistic missiles, whose sole purpose is to carry nuclear warheads.

To keep Iran’s nuclear weapons ambitions in check over the next decade, the P5+1 countries – the five U.N. Security Council members plus Germany – are relying on intelligence and inspectors. Here, the historical record does not bode well. The United States and Israel have two of the finest intelligence agencies in the world. But it was years before either knew that Iran had secret facilities at Natanz and Fordow .

As for inspections, Iran has been deceiving the International Atomic Energy Agency for years and has consistently refused to come clean about the possible military dimensions of its nuclear program – a commitment that Iran has once again been permitted to dodge before signing this agreement.

Given this history of deception, it is particularly disturbing that the promised “anytime, anywhere” inspections regime has degenerated into what has been aptly described as “sometime, somewhere” inspections.

The second problem with this deal is that the restrictions being placed on Iran’s nuclear program are only temporary, with the most important restrictions expiring in 10 years.

There is no linkage whatsoever between the removal of these restrictions and Iran’s behavior. In 10 years, Iran could be even more aggressive toward its neighbors, sponsor even more terrorism around the globe and work even harder to destroy Israel, and the restrictions on Iran’s nuclear program would still be automatically removed.

A much more dangerous Iran would then legally be allowed to build a massive uranium enrichment program that would place it just weeks away from having the fissile material for an entire nuclear arsenal. As President Obama himself has admitted, the breakout time would then be “almost down to zero.”

That is why this deal does not block Iran’s path to a nuclear bomb. It paves it. By agreeing to temporary restrictions on its nuclear program today, Iran has cleared its path to many nuclear bombs tomorrow. Iran won’t have to sneak into or break into the nuclear club. Under this deal, it could simply decide to walk in.

That leads to the third problem with the deal. Because states throughout our region know that the deal paves Iran’s path to the bomb, a number of them will race to get nuclear weapons of their own. The most dangerous region on earth would get infinitely more dangerous. Nuclear terrorism and nuclear war would become far more likely. In fact, if someone wanted to eviscerate the global nuclear nonproliferation regime, this deal is definitely a great place to start.

Finally, the deal transfers to the Iranian regime’s coffers $150 billion that is now frozen in foreign bank accounts. Iran has a $300 billion to $400 billion economy. A $150 billion cash bonanza for the regime is the equivalent of $8 trillion flowing into the U.S. treasury.

Those funds are unlikely to be spent on new cancer research centers in Tehran or on funding a GI bill for returning members of the Iranian Revolutionary Guard. Instead, tens of billions are likely to flow to the Shiite militias in Iraq, the Assad regime in Syria, the Houthis in Yemen, Hezbollah in Lebanon, Palestinian terror groups in Gaza and other Iranian terror proxies in the region.

Billions more will go to strengthening Iran’s global terror network, which it has used to perpetrate terror attacks on five continents in more than 30 cities, from Buenos Aires to Burgas, Bulgaria, to Bangkok.

Rather than force Iran to face the hard choice of guns or butter, this deal will enable it to have more dangerous guns, more lethal rockets, more sophisticated drones and more destructive cybercapabilities. Removing the arms embargo on Iran magnifies this problem by orders of magnitude.

Any one of these problems would be sufficient to make this a bad deal. But all four make this deal a disaster of historic proportions.

Israel has the most to gain if the Iranian nuclear issue is peacefully resolved. But this deal does not resolve the issue. It makes things much worse, increasing the chances of conventional war with Iran and its terror proxies today and dramatically increasing the chances of a nuclear-armed Iran and a nuclearized Middle East tomorrow.

This op-ed originally appeared in the Washington Post.