Ramping up their bellicose propaganda, North Korean officials declared they are “not afraid” of President Donald Trump after his strikes on Syria.

Calling Trump’s actions in Syria “absolutely unpardonable,” the foreign ministry of North Korea said that while some global observers believe the strikes were a “warning” to North Korea, the nation “is not frightened,” they said from the state-run Korean Central News Agency.

Trump’s strikes were in response to a chemical weapons attack, reportedly the handiwork of Syrian President Bashar al-Assad.

“Some forces are loud-mouthed that the recent U.S. military attack on Syria is an action of warning us but we are not frightened by it,” the report said, adding that the North’s “tremendous military muscle with a nuclear force as its pivot” will foil any aggression by the U.S.

“We will bolster up in every way our capability for self-defense to cope with the U.S. evermore reckless moves for a war and defend ourselves with our own force,” it said.

The Democratic People’s Republic of Korea, as it is officially called, has launched at least seven missiles in recent weeks, test-fired rocket engines in preparation for an intercontinental ballistic missile and repeatedly threatened war while preparing for what experts believe is another nuclear test.

The North’s aggression has ramped up in recent months, responding with hostility to joint U.S.-South Korean military exercises. The Daily Caller reports that this year’s drills include hundreds of thousands of troops, as well as high-level strategic military assets, such as stealth fighters, supersonic bombers, and nuclear-powered submarines and aircraft carriers. The North perceives U.S. and South Korean maneuvers as preparations for an invasion.

The Pentagon announced Saturday that a U.S. Navy carrier strike group led by the USS Carl Vinson is sailing towards the Western Pacific to dramatically increase America’s military presence near the Korean Peninsula.