This is the first US military response to Pyongyang's claim that it could launch intercontinental ballistic missiles.
Sea-based X-band radar (SB-X) is able to monitor long-range drives and provide critical data, according to US State Department officials reported CNN.
Radar, whose home port is in Hawaii, has deployed several times in the past to monitor North Korean missile activity.
However, it can only remain at sea for a certain, unknown, periods of time, so that military officials are trying to figure out the most important times, the official said.
Overall, SB-X sends north of Hawaii and stationed halfway to Alaska for optimal place to monitor potential North Korean missile launch, headed for Alaska, Guam or on the west coast of the United States.
An additional means of control have been identified for follow-up activities on the Korean peninsula, but the official declined to discuss details.
Defense officials point out that if North Korea is to launch intercontinental ballistic missiles, may not be downed by US missile defense system.
The Minister of Defense Ash Carter warned on Tuesday: "If it will be intercepted missiles threatening.
"If you are not threatened, we will not necessarily do so.
"It may be more to our advantage, first of all, to save our interceptor inventory, and, secondly, to gather intelligence of the year, not to (shoot it) when it is not threatening."
Also, we are still ready to face the security challenges anywhere in the world.
The Pentagon has warned his opponents that the attention, saying he is ready to face against all security challenges against it from anywhere in the world, during and after the transition from the outgoing President Barack Obama's incoming president Donald Trump.
Carter said, "The Council of the heads of departments, which includes the leaders of the combatant commands and services met today to discuss how we will ensure vigilance in the weeks and months.
"The meeting was another reminder that while the world is not a vacation for the transition here in Washington, nor the Ministry of Defense.
"The Americans and their friends around the world can have confidence, and our opponents need to make sure that the United States military full steam ahead in the coming weeks and months."
SB-X radar will increase the US ability to gather this type of data rocket.
North Korean leader Kim Jong-Un has recently announced the test launch ICBM's in the final stages.
US officials continue to say they do not believe that the North Koreans have mastered the technology needed for missile re-enters the atmosphere, according to reports.
It was the launch of three stages of a long-range rocket with satellite on the front end has increased in the universe.
The two technologies are very similar, but it's re-entry into the warhead, which has not yet been proven, said U.S. officials.
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