The U.S. Navy has dispatched a sea-based radar platform to high seas surrounding the Korean Peninsula in a bid to keep a closer eye on North Korea’s military moves.

The Sea-Based X-Band Radar-1 (SBX1) is a mid-course fire control radar on a 116 meter long by 85 meter high platform based on a seagoing vessel. The radar can see an object as small as a baseball at a range of two-thousand kilometers.

The U.S. Navy also dispatched the USS Fitzgerald guided missile destroyer to waters near the Korean Peninsula.

The dispatch of the high-tech radar and destroyer comes a day after the U.S. sent two F-22 Raptor fighter jets to take part in the combined South Korea-U.S. military drills.

CNN quoted a Defense Department official as saying that the U.S. Navy is moving the warship and the sea-based radar platform closer to the North Korean coast in order to monitor the country's military moves, including possible new missile launches.

The White House also announced that even though it takes the North Korean threats seriously, the U.S. is not seeing changes to the North Korean military posture.