North Korea and America have remained at odds in recent months, with Kim Jong-un continually threatening to attack the US with his nuclear programme.
Defence Analyst Jack Keane said America must stop sending military families to South Korea in order to allow the US to prepare for a war on North Korea.
Mr Keane said America must “start to bring our forces into the theatre” in an effort to shut down Kim Jong-un’s nuclear regime.
Speaking on Fox News, Mr Keane said: “I firmly believe that if you want to prevent war then make sure you are fully prepared for it.”
“If we are saying we are going to go to war to prevent him from having a nuclearised ICBM we have to show him some of that capability. We should not just be talking about it. Flying a bomber in for two or three days isn’t impressing anybody.
“Let’s put in place some of those resources that we would need to thicken the defence in South Korea and load up those bases, naval and air bases, with the capabilities we need.
“And then stop sending the military families to South Korea, that doesn’t make any sense to me whatsoever.”
But Mr Keane said America must first take the country down electronically by attacking its information and commander control systems.
Lastly, he insisted Donald Trump must also enforce a naval blockade on North Korea in an effort to cut off the “backdoor that we know exists where he is getting fuel and other supplies”.
In an effort to stop the rogue nation, the United Nations Security Council imposed tough sanctions on North Korea following its continued missile testing.
The resolution seeks to ban nearly 90 percent of refined petroleum product exports to North Korea.
Following the UN vote, Donald Trump wrote on Twitter: “The United Nations Security Council just voted 15-0 in favour of additional Sanctions on North Korea. The World wants Peace, not Death!”
The North Korea foreign ministry responded to the UN sanctions and branded them an “act of war” and said: “We define this ‘sanctions resolution’ rigged up by the US and its followers as a grave infringement upon the sovereignty of our Republic, as an act of war violating peace and stability in the Korean peninsula and the region and categorically reject the ‘resolution’.
“North Korea’s nuclear weapons are a self-defensive deterrence not in contradiction of international law.
“We will further consolidate our self-defensive nuclear deterrence aimed at fundamentally eradicating the US nuclear threats, blackmail and hostile moves by establishing the practical balance of force with the US.”