President Obama spent Christmas afternoon taking photos with 580 troops individually at Marine Corps Base Hawaii.

Before the photo sessions on Wednesday, he spoke to service members and their families at the base’s dining hall with first lady Michelle ObamaMichelle LeVaughn Robinson ObamaBudowsky: End the DNC malpractice George H.W. Bush in intensive care Michelle Obama congratulates duke and duchess of Cambridge on royal baby MORE by his side.

“A lot of our friends and comrades" are raising families while others are serving in Afghanistan and elsewhere overseas, Obama said, according to the White House pool report.

He then recounted the conversations he had with troops he called on Christmas Eve who are stationed overseas. Obama described the phone calls he had with 10 troops who are based in Afghanistan, Saudi Arabia and Bahrain.

“It was just a sampling of the incredible sacrifice that all of you and your families make every single day. Michelle and I know that we would not enjoy the freedoms we do, if it weren't for the incredible dedication and professionalism and work that you do. The least we can do is just let you all know we're grateful to you,” he said.

After his short address to the crowd, he began taking individual pictures with service members and their families for just over two hours.

Obama and his family arrived in Hawaii last weekend for their 17-day vacation.