US President Donald Trump will regret it if he pulls out of the nuclear deal with Iran, President Hassan Rouhani said on Monday. Washington’s sanctions which were lifted under the Joint Comprehensive Plan of Action (JCPOA) of 2015 will resume unless Trump waives them again on May 12. Trump has effectively set that as a deadline for European powers to “fix the terrible flaws” of the deal. The US president “has been trying for 15 months to break the JCPOA,” Rouhani said. “Iran will not violate the nuclear deal, but if the US withdraws from the deal, they will surely regret it. Our response will be stronger than what they imagine and they would see that within a week,” Reuters quoted Rouhani as saying on national nuclear technology day. “We will produce any weapons necessary to defend our country… But we will not use our weapons against our neighbors,” the president said.