The very large PACEX ' 89 in the North Pacific involved the USN, Canadian Navy, Japanese Maritime Self-Defence Force, and ROK Navy.

Five days later, during a subsequent exploration of this tunnel, U. S. Navy Commander Robert M. Ballinger and ROK Marine Corps Major Kim Hah Chul were killed in the tunnel by a North Korean explosive device.

There were ROK Army FC, ROK Navy FC, ROK Air Force FC until 1983 in Korea.

ROK Marine Corps FC became ROK Navy FC in 1973.

They were rescued by elements of the ROK Navy.

The Republic of Korea Navy ( Hangul: 대한민국 해군 ; Hanja: 大韓民國 海軍 ; Revised Romanization: Daehanminguk Haegun ) or the ROK Navy ( ROKN ) is the branch of the South Korean armed forces responsible for conducting naval operations and amphibious landing operations .< ref >" Duty of the ROK Navy ".

Retrieved March 10, 2007 .</ ref > The ROK Navy includes the Republic of Korea Marine Corps, which is a quasi-autonomous organization .< ref >" 해병대 조직 ".

Since the Korean War, the ROK Navy concentrated its efforts to build naval forces to counteract the North Korean navy, which has littoral naval capabilities.

As South Korea's economy grew, the ROK Navy was able to build larger and better equipped fleets to deter aggression, to protect national maritime rights and to support the nation's foreign policies .< ref >" 해군의 역할 ".

Retrieved March 8, 2007 .</ ref > As a part of its mission, the ROK Navy has engaged in several peacekeeping operations since the turn of the 21st century .< ref name =" autogenerated1 ">" 해군작전사령부 창설 54주년 .. 어제와 오늘 그리고 미래 ".

The ROK Navy has about 68, 000 regular personnel including 27, 000 Republic of Korea Marines ( as of 2010 ).

) in the ROK Navy, including some 20 destroyers and frigates, 12 submarines, 100 corvettes and fast attack craft as of 2011.

The ROK Navy aims to become a blue-water navy by 2020 .< ref >" 해군의 미래 ".

The objectives of the ROK Navy as maritime forces for the National Security are:

ROKS Baekdusan ( PC 701 ), the first warship of the ROK Navy

After the new Republic of Korea government was established on August 15, 1948, the Korean Coast Guard was formally renamed the Republic of Korea Navy, and Sohn became the first Chief of Naval Operations of the ROK Navy on September 5, 1948 .< ref >" Commander, U. S. Naval Forces Korea: The Early Years ( 1945 to 1957 )".

In the ROK Navy, all members are volunteers, with enlisted sailors and airmen serving for 26-month periods, and enlisted Marines serving for 24-month periods ; commissioned officer, warrant officer, and non-commissioned officer serving longer terms than those of enlisted men, or as career sailor, airmen, and Marines.

In the ROK Navy, as in the rest of the ROK Armed Forces, ranks fall into one of four categories: commissioned officer, warrant officer, non-commissioned officer ( petty officer ), and enlisted, in decreasing order of authority.

General / flag-grade officers are given dress swords upon assuming command in the Republic of Korea ( ROK ) army.

In addition, ROK Army officers served as liaison officers.

In the year 2001, six female ensigns, who had become commissioned officers through the officer candidate school, were assigned to serve on surface ships of the ROK Navy, for the first time ever .< ref >" 女해군장교들 첫 함정근무 ( 신문기사 )".

In the ROK Navy, personnel with ranks of Hasa through Wonsa are considered petty officers ( i. e. non-commissioned officers ) while those at Sangsa and Wonsa are further referred to as “ CPO ” ( chief petty officer ) collectively.

The ROK Divisions were well trained and highly motivated with many of the officers and NCOs veterans of the Korean War, but all their equipment dated back to that war ; their standard rifle was still the M1 Garand.

From January 2003, this policy started to be abandoned by most newspapers and TV stations, on the basis that other nations with naming issues such as South Korea ( ROK ) and Taiwan ( ROC ) are not necessarily referred to by their official names.

* The ROK leadership are referred to in quotation marks, as in " government " " ministry " and " authorities ", and often preceded by the term " puppet ", to imply illegitimacy.

The government of the ROK is also sometimes referred to by the name of the President, e. g. " the Lee Myung-bak group ", implying that the ROK leadership are a " clique " rather than a majority government.

* Any laws or regulations enacted in the ROK are referenced in quotations, as in " National Security Law ".

During a U. S. or ROK ( Republic of Korea ) ceremony, two guards are posted at the Demarcation Line facing west ( toward North Korea ).

The Rokenbok vehicles, crane, and elevator are controlled through up to four control pads using the classic RC unit, and unlimited controllers using ROK Star controllers.

The two ROK soldiers on either side are deliberately obscuring half of their bodies.

There are several paths to becoming a commissioned officer in the ROK Navy, including the Naval Academy, Officer Candidate School ( OCS ), and Naval Reserve Officer Training Corps ( NROTC ).

The positions are filled by senior Wonsa and Sangsa respectively and unlike their U. S. Navy counterparts, the ROK Navy Juim Wonsa and Juim Sangsa wear the same standard rate insignia of Wonsa or Sangsa and only wear a special identification badge.

In the ROK Navy, enlisted sailors are referred to as " Subyeong " ( 수병 ; 水兵 ).

In June, 1953, ROK president Syngman Rhee released a further 25, 000 KPA soldiers held in ROKA camps ( mostly southerners impressed into service for the north ) into South Korea in an attempt to wreck the armistice negotiations.

Roh Tae-woo (; born December 4, 1932 in Daegu, South Korea ), is a former ROK Army general and politician.

In October 1949, the ROK Navy purchased a 600-ton submarine chaser, the former, on the American civil market with funds raised among its personnel.

In May 1963, the ROK Navy acquired its first destroyer ROKS Chungmu ( DD 91 and later DD 911 ), the former, a Fletcher class destroyer.

Starting from 1972, nine former USN Allen M. Sumner class and Gearing class destroyers were transferred and added to the ROK Fleet inventory.

As a part of a plan to strengthen the surface combatant forces, the ROK Navy launched the lead ship of the Gwanggaeto the Great class destroyer in 1996 to replace the former U. S. Navy destroyers.

Kim Dongsik (), who was abducted on January 16, 2000, and Jin Gyeong-suk (), a defector to the South who was abducted on August 8, 2004, when she had returned to the PRC-DPRK border area on her ROK passport.

New President Choi Kyu-hah and his Cabinet had little control over the growing power of ROK Army General Chun Doo-hwan, who took control of the government through the Coup d ' état of December Twelfth.

Vance met with Park on 11 February and set out the Johnson Administration's position: there would be no wider war in Korea, any ROK cross-border action was subject to approval by General Bonesteel who would himself need approval from President Johnson and the U. S. would negotiate as necessary to secure the release of the Pueblo crew.