North Korea flexed its military muscle in response to online joint US-South Korean military exercises by releasing a propaganda video depicting a strike on an American aircraft carrier.

“A knife will be stabbed into the throat of the carrier,” a female narrator says in the 170-second clip, posted over the weekend on YouTube by Pyongyang’s official Uriminzokkiri website, news.com.au reported.

The footage appears to show a burning USS Carl Vinson nuclear-powered aircraft carrier and a strategic bomber.

“The bomber will fall from the sky after getting hit by a hail of fire,” the narrator adds.

The Carl Vinson — which is seen in digitized cross hairs in the video — is currently involved in the annual “Foal Eagle” joint exercises, which have long angered the hermit kingdom.

Uriminzokkiri said the exercises have shed all pretenses of being a defensive operation — declaring them an intent to assassinate the North’s leadership, South Korea’s Yonhap News Agency reported.

North Korean dictator Kim Jong Un recently conducted ballistic missile launches that the country said was a training exercise for a strike against a US base in Japan.

“The nuclear force of (North Korea) is the treasured sword of justice and the most reliable war deterrence to defend the socialist motherland and the life of its people,” said a spokesman for North Korea’s Foreign Ministry, the Korean Central News Agency reported.

The bellicose display comes shortly after US Secretary of State Rex Tillerson’s visit to South Korea, where he said the US had not ruled out military action against the North.

“Let me be very clear: The policy of strategic patience has ended,” Tillerson said after visiting the heavily militarized border between the rival Koreas, news.com.au reported. “We are exploring a new range of diplomatic, security and economic measures. All options are on the table.”