Americans Kenneth Bae and Matthew Miller have marked their first full day of freedom, returning to the United States after being imprisoned in North Korea.
The two men arrived home late on Saturday following a secret mission by US intelligence chief James Clapper to secure their freedom at Pyongyang's initiative.
North Korea's surprise release of the men followed Pyongyang's equally unexpected decision last month to free 56-year-old US national Jeffrey Fowle.
The two men descended from a US government jet with shaved heads and carrying their luggage, then embraced loved ones on the tarmac.
"It's just (an) amazing blessing to see so many people being on board, getting me released for the last two years, not to mention the thousands of people who prayed for me," Bae told a press conference.
"Thank you for... not forgetting me," he said.
Miller opted not to make remarks upon his arrival.
Clapper had carried a brief message from Obama to North Korean leader Kim Jong-Un - whom he never met during the short trip - indicating he was his personal envoy to bring the Americans home, a US official said.
Bae, a Korean-American missionary, had served two years at a North Korea labour camp. Miller had been held since April.
Nicholas Burns, a former State Department top official and Asia expert, said the American detainees' release marked the latest somewhat mysterious gambit by North Korea's inscrutable leader Kim Jong-Un.
"He makes all the big decisions, so he obviously made the decision to release the two Americans this weekend and the American last month," Burns told CNN on Sunday.
"It looks like he's looking for a conversation with the United States.
But Burns said the move could also be linked to this week's travel by President Barack Obama to China for meetings with his Asian counterparts, including Beijing's leader Xi Jinping.
"It may be that in his own awkward, unsophisticated way, Kim Jong-Un is trying to reassure the Chinese he's not such a bad guy after all," Burns said.
