UPDATE: Here are the names of the participants, courtesy of the White House.

ARMY

Unit: 103 Sustained Command

Location: Camp Arifjan, Kuwait

Captain Roxanna Flores

MARINE CORPS

Unit: Task Force Southwest 19.2

Location: Camp Shorab, Afghanistan

Brigadier General David Odom

NAVY

Unit: USS Forest Sherman (DDG 98)

Location: Gulf of Aden

Commander Frank Azzarello

AIR FORCE

Unit: 20th Attack Squadron

Location: Whiteman AFB, Missouri

Lieutenant Colonel Daniel Wassmuth

COAST GUARD

Unit: CG Air Station Sitka

Location: Sitka, Alaska

Captain Michael Frawley

***Original post***

Marking Christmas Eve at Mar-a-Lago Wednesday morning, President Trump held a teleconference with U.S. troops serving around the world.

“You’re tremendous warriors, and we appreciate it so much,” Trump said. “I wish you all a Merry Christmas and a happy new year.”

“I hope every member of our military will feel the overwhelming gratitude of our nation," he continued.

WATCH: Pres. Donald Trump participates in a video teleconference with members of the military. https://t.co/eITFZB4KT8 — ABC News (@ABC) December 24, 2019

HAPPENING NOW: @realDonaldTrump is speaking via teleconference to members of all branches of the military deployed overseas. @POTUS is thanking them for their service & letting them know our country is thinking of them always - esp during the holidays. ?????? — Stephanie Grisham (@PressSec) December 24, 2019

Trump participates in a video conference with servicemembers pic.twitter.com/5YK7W1HlXr — Zeke Miller (@ZekeJMiller) December 24, 2019

Soldier asks Trump what he got FLOTUS for Christmas. “I got her a beautiful card... I’m still working on a Christmas present” — Zeke Miller (@ZekeJMiller) December 24, 2019

Over Thanksgiving, President Trump made a surprise visit to Afghanistan.

President Trump is speaking with U.S. troops in Afghanistan in a surprise visit for Thanksgiving: "There’s nowhere I’d rather celebrate this Thanksgiving than right here with the toughest, strongest, best and bravest warriors on the face of the Earth." pic.twitter.com/5AxUe1cSvU — Julio Rosas (@Julio_Rosas11) November 28, 2019

Last Christmas, President Trump and First Lady Melania Trump made a surprise trip to Iraq.