Tensions are reaching a fever pitch on the Korean Peninsula between the United States and North Korea as the isolated nation threatened the U.S. with a “super-mighty preemptive strike” after U.S. Secretary of State Rex Tillerson was looking to increase pressure on the North Korean regime.

The latest display of aggression comes after North Korea paraded its military hardware over the weekend. The country celebrated the birthday of its founder Kim Il Sung, grandfather to the current leader, Kim Jung Un.

The United States has stepped up its warnings to North Korea over its missile program and nuclear tests. The Trump Administration has said that the “era of strategic patience is over” regarding its policy towards North Korea.

This threat is typical of the authoritarian regime. Pyongyang periodically warns the United States of destruction. Last year, the country released a propaganda film showing a nuclear-tipped ICBM striking New York City.

North Korea claims to have a missile capable of reaching the United States; however, its missile tests indicate that they are incapable of going beyond the Sea of Japan. The country attempted an intermediate-range missile test from a naval port near the city of Wonsan on Sunday April 16, but the missile blew up within seconds of launch.

President Trump has taken a much harder stance towards North Korea than his predecessor, Barack Obama. The president threatened the belligerent nation with an “armada.”

“We are sending an armada, very powerful. We have submarines, very powerful, far more powerful than the aircraft carrier,” Trump told Fox Business Network last week. “We have the best military people on Earth.  And I will say this: [North Korean dictator Kim Jong Un] is doing the wrong thing.”

President Trump, unaware of the location of the USS Carl Vinson Carrier Group, mistakenly threatened North Korea too soon. The U.S. Navy said on Tuesday the carrier, USS Carl Vinson, was heading toward the Korean Peninsula, but only after it passes through Australia.