Strategic Task Fleet. Succeeding President Kim, President Roh Moo-hyun also supported the Navy's plan for the Task Fleet to become a blue-water navy. In 2008, the Navy updated its strategic vision for the 2030s as "Navy Vision 2030". The ROK Navy continued to strengthen the fleet: In 2002, the lead ship (DDH 975) of the 4,500-ton Chungmugong Yi Sunshin-class destroyer was launched. In 2005, the 14,000-ton amphibious landing ship, ROKS Dokdo (LPH 6111) was launched. In 2006, the ROK Navy launched the lead ship (SS 072) of the 1,800-ton Sohn Wonyil-class submarine, which was named after the first Chief of Naval Operations, equipped with air-independent propulsion (AIP) system. In May 2007, the ROK Navy launched the lead ship (DDG 991) of the destroyers, built around the Aegis combat system and the SPY-1D multi-function phased array radar. In June 2007, the ROK Navy launched the lead ship (PKG 711) of the Yoon Youngha-class missile boat in honor of the late captain of ROKS Chamsuri 357, which was sunk after an engagement with the North Korean navy in 2002. The ROK Navy completed the construction of Busan Naval Operations Base in June 2006; Commander Third Fleet was moved to the newly established operational headquarters. In November 2007, Commander Third Fleet was relocated to Mokpo while disestablishing Mokpo Naval Sector Defense Command. In December 2007, Commander-in-Chief Republic of Korea Fleet (CINCROKFLT) moved its command headquarters from Jinhae Naval Base to Busan Naval Operations Base. Jinhae had been CINCROKFLT's homeport since 1953. As part of its mission, the ROK Navy participated in several peacekeeping operations since the turn of the century. From 2001 to 2003, a naval transport unit called Haeseong supported the Operation Enduring Freedom and the Sangnoksu Unit in East Timor. In 2005, the Navy dispatched a transport unit called Jejung to supply aid in humanitarian response to the 2004 Indian Ocean earthquake. In 2004, the ROK Navy hosted a multilateral naval exercise - Pacific Reach 2004 - for the first time. The Cruise Training Fleet - ROKS Chungmugong Yi Sunshin (DDH 975) and ROKS Cheonji (AOE 57) - visited the United Kingdom in order to take part in the International Fleet Review for Trafalgar 200 in 2005. The ROK Navy hosted its second international fleet review off coast of Busan in October 2008 to celebrate the 60th anniversary of the South Korean government. On March 26, 2010, ROKS Cheonan (PCC 772),