Iran’s Parliament Speaker Ali Larijani vowed on Monday that Tehran will end its nuclear obligations should the United States withdraw from the nuclear deal, while the head of Irans Revolutionary Guards refused to halt the cleric-led nation’s development of its ballistic program. Commander of the Revolutionary Guards Aerospace Division says Brig.Gen Amir Ali Hajizadeh said that Tehran will not stop boosting its missile capabilities under any circumstances, shrugging off US President Donald Trump’s call for constraints on Iran’s ballistic missile program. Speaking at a cultural ceremony in the city of Qom on Monday, Brig.Gen.Hajizadeh said that “[even] if a wall is constructed all around the country, the production of missiles will not be halted because this is a completely indigenous and domestic industry,” he said. The Iranian official’s remarks were made as US Secretary of State Rex Tillerson said that Washington will be working with allies to face threats posed by Tehran. "Were going to work with our European partners and allies to see if we cant address these concerns," said Tillerson. On the other hand, Brig.Gen.Hajizadeh pointed to Washington’s hostile approaches to Tehran and added that “the US enmity is an unchangeable issue and strategy. [Therefore,] its tactics may change but the strategy itself never changes.” The IRGC commander was also cited as playing down concerns about a possible war against Iran, saying “this is the enemy’s psychological warfare and our country is so strong that no one will dare attack or confront the Islamic Republic.” He emphasized that US statesmen were under the influence of Zionists blasting US policy as "dictated by the Zionists." US President Donald Trump on October 13 refused to formally certify that Iran was complying with the 2015 nuclear deal, known as the Joint Comprehensive Plan of Action (JCPOA), and warned that he might ultimately terminate the agreement. While Trump did not pull Washington out of the nuclear deal, he gave the US Congress 60 days to decide whether to re-impose economic sanctions against Tehran that were lifted under the pact. Re-imposing sanctions would put the US at odds with other signatories to the accord and the European Union. Trump also said his goal was to ensure Iran would never obtain a nuclear weapon, adding: "We will not continue down a path whose predictable conclusion is more violence, more terror and the very real threat of Iran’s nuclear breakout."