Iran’s Islamic Revolutionary Guard Corps (IRGC) has said that its ballistic missile program would accelerate despite pressure by the U.S. and European Union to suspend it.

“Iran’s ballistic missile program will expand and it will continue with more speed in reaction to Trump’s hostile approach towards this revolutionary organization,” the IRGC said on Thursday.

It came a week after U.S. President Donald Trump announced policy shift toward Iran and decertified Iran’s compliance with the nuclear deal. Trump said he would launch a more aggressive approach to Tehran over its missile program.

The Trump administration has imposed new sanctions on Iran because of its missile program. It has also called on Tehran not to develop missiles capable of delivering nuclear bombs.

Iran, however, has denied such plans on numerous occasions, saying its missile program are of defensive nature and that it has never sought to develop nuclear weapons.

“Trump’s anxiety and trembling voice in his speech was a sign of beginning of the era of failure for America’s hegemony,” IRGC Chief Commander Mohammad Ali Jafari said, adding that boosting the country’s defense power remains a top priority.

The IRGC also vowed to continue defending Iran and its interests against the United States and Israel.