Iran's President Hassan Rouhani has declared that Tehran will not wait for any permission to produce the weapons it needs to defend the country.
In a speech marking Iran's Army Day on Wednesday, Rouhani said a strong military is an effective deterrence against foreign threats.
"If there is any weapon we need, we will develop it for the most part, or procure it if necessary," Rouhani was quoted by Iran's Mehr news agency as saying.
"We will not wait for approval from the world."
Rouhani said countries that rely on their domestic capabilities "feel the true sense of sovereignty and power".
In recent days, there have been reports that European countries are considering measures against Iran's ballistic missile programme, in an effort to persuade US President Donald Trump to maintain the Iran nuclear deal.
Iran has insisted that its missile programme is not negotiable. It said it is only for defence purposes, and not intended to carry any nuclear weapons.
During the military parade in the capital Tehran on Wednesday, Iran's military unveiled its domestically manufactured missile system, Kamin-2, which is a portable device designed "to target enemy drones flying in low altitude", according to the English-language state television, Press TV.
Other military hardware on display were several missile and radar systems, as well as tanks, armoured vehicles and sniper rifles.