It's unclear whether this is supported by the Iranian government. We should put the production of long-range missiles that can carry unconventional warheads on our agenda.
During his speech, Hamzeh also addressed Iran's nuclear program, vowing that "if we had nuclear weapons today, we would be protected from threats". "This is our natural right", he said, according to Reuters.
Earlier, on his soon-to-be-formally-started campaign trail, Trump also praised the Soleimani assassination, which closely followed an early January raid on the US Embassy in Baghdad, along with an operation conducted late a year ago that killed Daesh leader Abu Bakr al-Baghdadi.
It prompted Iran to retaliate with missile strikes against United States forces in Iraq days later and nearly triggered a broad war between the two countries. Tehran insists that it has never looked for nuclear weapons and never will.
After Soleimani was killed, Iran announced it was rolling back its commitments under the 2015 nuclear deal - a step that pushed the European parties to the treaty, such as France, Germany and the United Kingdom, to launch an investigation into Tehran's alleged non-compliance.
The comments came after Britain, France, and Germany paved the way last week for possible sanctions to be re-imposed on Iran if the Islamic Republic continues to back away from its global nuclear deal.
This month, Iran announced it was scrapping all limits on its uranium enrichment work, potentially shortening the so-called "breakout time" needed to build a nuclear weapon.
He also threatened American bases, saying that USA forces in the region are a danger to "our interests" and "Do you think we have the legal right to blow up all your bases?" US envoy Robert Wood believes this would send a "very, very negative message".