The US Secretary of Defence has announced that the newest destroyer USS Zumwalt(DDG-1000) will be deployed to the Republic of Korea for defence of the country. USS Zumwalt experienced a machine malfunction in November 2016 and was urgently taken care of. After this maintenance, the destroyer will join an operation for the first time with her new position. The United States had previously agreed with the Republic of Korean authorities to establish THAAD Air Defence System in this country. The US deployed the airborne early warning E-2D Advanced Hawkeye and F-35B aircraft to the aircraft carrier in Japan for similar reasons and has significantly increased its military systems in the Pacific region.