YONGSAN GARRISON, South Korea (AP) – Troops and diplomats from countries that fought in the Korean War paid respects Thursday at the repatriation of remains recovered from North Korea of six American servicemen who died more than a half-century ago.

Dozens of military personnel in dress uniforms stood at attention behind the six coffins draped in blue United Nations flags – representing the American-led U.N. alliance that battled the North after it invaded South Korea in 1950.

The remains were brought Wednesday from the North to South Korea by an American delegation led by New Mexico Gov. Bill Richardson and Anthony Principi, former American veterans affairs secretary. During a four-day visit to Pyongyang, the American officials – joined by the top White House adviser on Korea, Victor Cha – pressed the North to follow through on its promise to start dismantling its nuclear weapons programs.

At the repatriation Thursday, American Army General B.B. Bell praised the efforts of troops from 21 nations that fought to help South Korea deter the North during the war, which ended in a 1953 cease-fire that has never been replaced by a peace treaty – leaving the two Koreas still at war.

“It was their selfless service and ultimate sacrifice that saved the nation, giving the people of the Republic of Korea and opportunity to forge their destiny,” said Bell, the top American commander on the peninsula, referring to South Korea by its official name.

Military officials saluted the coffins as they were taken from a gymnasium at Yongsan Garrison, the main American base in central Seoul, to six polished hearses while a band played “Abide With Me.”

The ceremony provided a stark contrast to when the delegation received the remains Wednesday in North Korea, where they had been packed into six small black cases and lined up on a road near the heavily fortified Demilitarized Zone dividing the Koreas. From there they were escorted across the border into South Korea, where they were then transferred to coffins.

Earlier Thursday, Richardson met with South Korean President Roh Moo-hyun, who said their mission to the North would help reconciliation between the two Koreas, according to the governor.

“This patriotic effort will be a huge plus in pushing forward the peace process,” Richardson said after the repatriation ceremony.

The remains were to be flown later Thursday to Hawaii for identification. Three of the sets of the remains came with identification tags.

More than 33,000 American troops died in the Korean War, and some 8,100 American servicemen still are listed as missing.

America and North Korea had previously been involved in a joint project to recover remains in the North, but the effort was halted in 2005 after Washington said security arrangements for its personnel were insufficient. The program had recovered remains believed to be from 220 soldiers since 1996.