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Donald Trump’s number two has issued the stark warning to Pyongyang during a visit to South Korea today.

During a trip to the Korean demilitarized zone (DMZ), Pence said “strategic patience” with North Korea is over.

His explosive comments come 24 hours after supreme leader Jong-un was humiliated by the embarrassing failure of a missile test.

Tensions between the nations are still fraught as Trump said the US has “no choice” to build up military power “stronger than ever before”.

Now around 1,000 US fighter jets and pilots have teamed up with South Korea’s Air Force to prepare for war with the communist state.

(Image: GETTY)

South Korea’s Pacific Command (PACOM) announced the joint military drill on Monday.

The two-week Max Thunder exercise is one of the largest flying military exercises held annually in South Korea.

American fighter jets such as the F-16, AV-8B, EA-18G will take part in the massive military drill that will terrify Jong-un.

(Image: GETTY) (Image: GETTY)

Around 500 South Korean military personnel will also participate in the war exercise.

General Thomas W. Bergeson, 7th Air Force commander, said: “This exercise will rigorously test our aerial combat capability and highlights the ironclad commitment between the US and [South Korea], and the multifaceted capabilities we possess in this theatre.”

North Korea attempted to launch another missile 24 hours after a huge military parade in the totalitarian nation.

Pence branded the failed launch as yet another “provocation” and warned Jong-un not to test the patience of the US President.

He said the US would stand by its "iron-clad alliance" with South Korea and was seeking peace through strength.

Speaking with reporters in South Korea today, he said: "All options are on the table to achieve the objectives and ensure the stability of the people of this country.

He later added: "There was a period of strategic patience but the era of strategic patience is over."