President Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE on Monday traveled to Dover Air Force Base in Delaware where he participated in a ceremony honoring the return of the remains of two U.S. service members killed in Afghanistan.

Trump arrived in Dover just before 10 p.m. local time after a rally in Manchester, N.H., then disembarked and took part in a dignified transfer ceremony for the remains of Sgt. 1st Class Antonio Rodriguez of New Mexico and Sgt. 1st Class Javier Gutierrez of Texas.

The two men were killed in an apparent insider attack in Afghanistan last week that also wounded six others. The attack was not thought to be the work of the Taliban, according to news reports, despite regular conflicts between Taliban forces and Afghan security forces.

National security adviser Robert O'Brien told reporters aboard Air Force One after the event that the ceremony was one of the "toughest" parts of the president's job.

“These were fallen heroes and we were close by and the president wrapped his rally early so he could come," O'Brien said.