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North Korea fired a second ballistic missile over Japan on Friday, creating a new tension between Pyongyang and the West after a series of weapons tests by the rogue state. The hermit nation sparked World War 3 fears when its leaders declared they had carried out a successful nuclear bomb test, claiming their weapon could be mounted to an intercontinental ballistic missile. Donald Trump is likely to react in a “strong” manner to the latest North Korean missile test after Pyongyang wasn't deterred by a series of international sanctions designed to bring a halt to their missile programme.

GETTY North Korea fired a second ballistic missile over Japan

But it is not thought the US will attack despite the president’s previous inflammatory comments on the subject of the hermit state and its chubby dictator Kim Jong-Un. In April, he threatened to rain “fire and fury” onto North Korea if the nation threatened the US or its allies. While Secretary of Defence General James ‘Mad Dog’ Mattis refused to rule out a devastating end to the Kim regime through the USA’s “many military options”, claiming North Korea could face “total annihilation”. Now Express.co.uk reveals exactly what would happen if Mr Trump ordered the US military to nuke North Korea:

North Korea v USA explosive latest pictures Wed, September 20, 2017 Images depict how tensions have escalated between North Korea and the United States. Kim Jong-Un boasted of North Korea's ability to strike any target in the US after a second ICBM test that weapons experts said could even bring New York into range - in a potent challenge to President Donald Trump Play slideshow AFP/Getty Images 1 of 45 North Korea's intercontinental ballistic missile (ICBM), Hwasong-14 being lauched at an undisclosed place in North Korea

1. First the President would receive word of an incoming attack and open ‘the football’ War with North Korea would only begin with Donald Trump receiving word of an imminent attack - either on the US or an ally. The a military officer who is always by the president’s side, would open the nuclear briefcase known as the football. A black leather case which is carried around wherever the president goes, the football contains an outline of the nuclear options available and instructions for contacting military commanders around the world. Instructions also outline how to give out orders demanding the commanders to launch their missiles.

REUTERS Donald Trump threatened to rain “fire and fury” onto North Korea

GETTY The football contains an outline of the nuclear options available

2. Trump must discuss his options with two top military officials The president is the sole decision-maker but he must first consult two people to make that decision: the Pentagon’s deputy director of operations in charge of the National Military Command Centre or “war room,” and the commander of US Strategic Command. However the resident can include whoever else he wants in the conversation - meaning daughter Ivanka and son-in-law Jared Kushner could in theory help with the decision. 3. The president then makes the decision, and the order is given. To verify the command, the officers recite an unknown code. The president must then respond with a code printed on a card that he carries with him at all times, known as the “biscuit.”

REUTERS North Korea's missile flew directly over the Japanese island of Hokkaido