Israel's ambassador to the UN has now addressed the UN Security Council.
Danny Danon says the cost of inaction in Iran would have been "catastrophic" and that a nuclear Iran "would have been a death sentence".
"This is what the last line of defence looks like when every other line has failed," he says.
Danon also accuses Iran of using nuclear negotiations as "camouflage" to buy time to build missiles and enrich uranium.
Iran has maintained its nuclear programme is for civilian purposes and not to make weapons.