Vice President Mike Pence (R) receives a flag from Navy Rear Adm. Jon Kreitz, deputy director of the POW/MIA Accounting Agency during a visit to Joint Base Pearl Harbor-Hickam in Hawaii, Aug. 1, 2018.
It also reported that North Korean officials have discussed how they plan to deceive the United States about the size of their arsenal of missiles and nuclear warheads and facilities. The correspondence came amid fresh concerns over Pyongyang's commitment to denuclearisation.
The U.S. military flew the remains from Osan Air Base in South Korea after they had undergone an initial review.
Vice President Mike Pence accepted the remains of presumed USA soldiers killed during the war in a solemn ceremony at Joint Base Pearl Harbor-Hickam in Hawaii.
The pledge to return the remains of US soldiers was made during a landmark summit between Trump and Kim in June in Singapore, where North Korea committed to work toward the complete denuclearization of the Korean peninsula.
Most of the remains returned to the US were from the village of Sinheung Ri, near the Chosin Reservoir. The last time North Korea handed over remains, in 2007, the country transferred six boxes, out of which seven individuals were identified, he said.
Byrd cautioned that. "at this point, at least, there's no way to tell" how many more sets of remains the North Koreans might already have in their possession.
The pledge to transfer war remains was seen as a goodwill gesture by Kim at the Singapore summit, and was the most concrete agreement reached by the two sides so far.
USA intelligence agencies are seeing signs of construction of missiles at a factory that produced the country's first intercontinental ballistic missiles capable of reaching the United States, The Washington Post reported earlier this week, citing intel sources.
U.S. Secretary of State Mike Pompeo told the U.S. Senate Foreign Relations Committee last week that North Korea was continuing to produce fuel for nuclear bombs despite its pledge to denuclearize. He said during a Tuesday rally in Tampa, Florida, that the US was "doing well" with North Korea and noted the return of detained Americans and Pyongyang's ceasing of nuclear testing or missile tests.
"Looking back on it, I would say it was challenging but very successful", said Byrd, who took part in the joint field operations that stretched from the mid-1990s to the mid-2000s.
Friday's transfer of the remains on the Korean Peninsula coincided with the 65th anniversary of the 1953 armistice that ended fighting between North Korean and Chinese forces and South Korean and USA -led forces under the U.N. Command. Add North Korea as an interest to stay up to date on the latest North Korea news, video, and analysis from ABC News.
Pentagon holds press briefing on return of presumed American remains from North Korea.