Israel is not going to rely on the Iran nuclear agreement and will “do everything” to prevent Iran’s leadership from getting hold of nuclear weapons, Israeli Prime Minister Benjamin Netanyahu said on Tuesday.

“Israel isn’t pinning its hopes on an agreement with an extremist regime like Iran’s. We already saw what these agreements are worth with North Korea,” Netanyahu said at a memorial service for the 1920 Battle of Tel Hai.

“With or without an agreement, we will do everything so Iran isn’t armed with nuclear weapons,” Netanyahu said.

In 2015, Iran signed the Joint Comprehensive Plan of Action with the permanent members of the UN Security Council, Germany, and the European Union, which required Iran to scale back its nuclear program in exchange for sanctions relief. The Trump administration unilaterally withdrew the United States from the deal in 2018 and reinstated sanctions on Iran. This prompted the Islamic republic to announce that it will gradually abandon its obligations under the deal, first of all, limits on uranium enrichment.

In December, Iran passed a law to increase its uranium enrichment and stop UN inspections of its nuclear sites in response to the assassination of prominent Iranian nuclear scientist Mohsen Fakhrizadeh, who was one of the key figures behind Iran’s nuclear program.

Iran blamed the assassination on Israel. In January, Iran’s atomic energy organization announced that the country had succeeded in enriching uranium to 20 percent at the Fordow Fuel Enrichment Plant, while last week, Iran decided to limit the inspection of its nuclear sites by the IAEA.