DOVER AIR FORCE BASE, Del. (AP) — President Donald Trump on Saturday joined grieving families at Dover Air Force Base at the dignified transfer for the six U.S. soldiers killed in the war in the Middle East.

The dignified transfer, a ritual that returns the remains of U.S. service members killed in action, is considered one of the most somber duties of any commander in chief. During his first term, Trump said bearing witness to the transfer was “the toughest thing I have to do” as president.

“It’s a very sad day,” Trump told reporters on Air Force One as he returned to Florida later Saturday afternoon, saying that he was “glad we paid our respects.” He said the relatives of the deceased are “great people, great parents, wives, family” and said that the “parents were so proud.”

Both Trump and Vice President JD Vance were present for the transfer, as were their spouses. A host of top administration officials were in attendance, including Defense Secretary Pete Hegseth, who wrote in a social media post Friday of “an unbreakable spirit to honor their memory and the resolve they embodied”; Attorney General Pam Bondi, White House chief of staff Susie Wiles, special envoy Steve Witkoff and Tulsi Gabbard, the director of national intelligence.

Also present for the solemn event were governors and senators from Iowa, Minnesota, Nebraska and Florida.

Those killed in action were Maj. Jeffrey O’Brien, 45, of Indianola, Iowa; Capt. Cody Khork, 35, of Winter Haven, Florida; Chief Warrant Officer 3 Robert Marzan, 54, of Sacramento, California; Sgt. 1st Class Nicole Amor, 39, of White Bear Lake, Minnesota; Sgt. 1st Class Noah Tietjens, 42, of Bellevue, Nebraska; and Sgt. Declan Coady, 20, of West Des Moines, lowa, who was posthumously promoted from specialist.

As is protocol, Trump — wearing a blue suit, red tie and a white USA hat — did not speak during the transfer. The president saluted as each flag-draped transfer case was carried from the military aircraft to awaiting transfer vehicles, which would take them to a mortuary facility to prepare them for their final resting place. The families were largely silent as they observed the ritual, which lasted about a half hour.

The six members of the Army Reserve, who were killed by a drone strike at a command center in Kuwait, were all from the 103rd Sustainment Command based in Des Moines, Iowa, which provides food, fuel, water and ammunition, transport equipment and supplies. They died just one day after the U.S. and Israel launched its military campaign against Iran.

“These soldiers engaged in the most noble mission: protecting their fellow Americans and keeping our homeland secure,” Republican Sen. Joni Ernst of Iowa, a combat veteran, said earlier this week after the six were identified. “Our nation owes them an incredible debt of gratitude that can never be repaid.”

During the ritual, transfer cases draped with the American flag and holding the remains of the fallen soldiers are carried from the military aircraft that transported them to an awaiting vehicle to take them to the mortuary facility at the base. There, the service members are prepared for their final resting place.

Amor’s husband, Joey Amor, said earlier this week that she had been scheduled to return home to him and their two children within days.

“You don’t go to Kuwait thinking something’s going to happen, and for her to be one of the first – it hurts,” Joey Amor said.

O’Brien had served in the Army Reserve for nearly 15 years, according to his LinkedIn account, and his aunt said in a post on Facebook that O’Brien “was the sweetest blue-eyed, blonde farm kid you’d ever know. He is so missed already.”

Marzan’s sister described him in a Facebook post as a “strong leader” and loving husband, father and brother.

“My baby brother, you are loved and I will hold onto all our memories and cherish them always in my heart,” Elizabeth Marzan wrote.

Coady was among the youngest people in his class, trained to troubleshoot military computer systems, but he impressed his instructors, his father, Andrew Coady, told The Associated Press.

“He trained hard, he worked hard, his physical fitness was important to him. He loved being a soldier,” Coady said. “He was also one of the most kindest people you would ever meet, and he would do anything and everything for anyone.”

Khork’s family described him as “the life of the party” who was known for his “infectious spirit” and “generous heart” and who had wanted to serve in the military since childhood.

“That commitment helped shape the course of his life and reflected the deep sense of duty that was always at the core of who he was,” according to a statement from his mother, Donna Burhans, his father, James Khork, and his stepmother, Stacey Khork.

Tietjens, who came from a military family, previously served alongside his father in Kuwait. When he returned home in February 2010, he reunited with his overjoyed wife in a local church’s gym.

Tietjens’ cousin Kaylyn Golike asked for prayers, especially for Tietjens’ 12-year-old son, wife and parents, as they navigate “unimaginable loss.”

Trump most recently traveled to Dover in December to honor two Iowa National Guard members and a U.S. civilian interpreter who were killed in an ambush attack in the Syrian desert. He attended dignified transfers several times during his first term, including for a Navy SEAL killed during a raid in Yemen, for two Army officers whose helicopter crashed in Afghanistan and for two Army soldiers killed in Afghanistan when a person dressed in an Afghan army uniform opened fire.

AP’s Julia Demaree Nikhinson contributed to this report