The Republic of Korea Navy Somali Sea Escort Task Group (Korean: 대한민국 해군 소말리아 해역 호송전대), also known as Cheonghae Unit (청해부대; 淸海部隊) was established by the Republic of Korea Navy to protect civilian ships near the coast of Somalia under Combined Task Force 151.

In January 2011, commandos in the Cheonghae Unit successfully executed a highly publicized rescue of a South Korean tanker, freeing crew members held hostage by Somali pirates.

In August, the Dae Joyeong raided a pirate vessel that had been pursuing the Bahamian container ship Notos Scan.

[9] ROKS Kang Gamchan relieved the Yi Sun-shin in May 2010, and transported injured crew members from a Bahamian drilling ship to a hospital later that month.

Among the 432 vessels it escorted was the Samho Dream, which had finally been released by pirates in November for a record ransom payment of $9.5 million.