President Biden arrived Friday at Dover Air Force Base in Delaware to meet with the families of three American soldiers killed by Iran-backed militants in Jordan ahead of the ceremonial return of their bodies.

Biden, 81, spoke by phone with the relatives and asked if they would like him to attend, the White House said ahead of the event — after the president’s attempts to comfort the families of 13 Americans killed in August 2021 during the US withdrawal from Afghanistan went sideways after he checked his watch and talked about his own son Beau’s death from cancer.

Sgt. William Jerome Rivers, 46, Spc. Kennedy Ladon Sanders, 24, and Spc. Breonna Alexsondria Moffett, 23, were killed and more than 40 US troops were wounded in the Jan. 28 drone attack on a remote outpost called Tower 22 near the Syrian border.

Biden told reporters Tuesday that “yes” he had determined the US answer to the attack, but the American military has not yet announced retaliatory strikes.

The Iran-backed Iraqi group Kataib Hezbollah, a potential perpetrator, said Tuesday it would halt its attacks on American troops.

National Security Council spokesman John Kirby said Wednesday that the Islamic Resistance in Iraq umbrella group was ultimately responsible for the deadly attack.

The fatalities in Jordan followed a series of other operations by Iranian proxy groups in Iraq, Syria and off Yemen’s coast following the Oct. 7 terror assault by Hamas against Israel.

Biden last month ordered US airstrikes on the Houthi movement that controls most populated areas of Yemen after the Iran-backed group repeatedly attacked commercial ships in the Red Sea.

Hamas terrorists murdered about 1,200 people in southern Israel and took more than 200 hostages to the Gaza Strip on Oct. 7, triggering an invasion by the Jewish state to oust the group from power in the territory.