WASHINGTON (AP) — The American people and the fallen soldiers’ families deserve answers about a deadly ambush in the African nation of Niger, the top U.S. general said Monday, without being able to provide many himself.

Three weeks after the attack by presumed Islamic State forces, Marine Corps Gen. Joseph Dunford, the Joint Chiefs of Staff chairman, said several matters must still be resolved. They include whether the U.S. had adequate intelligence and equipment for its operation, whether there was a planning failure and why it took so long to recover one of the bodies.

Dunford said the four U.S. soldiers died after a battle that started Oct. 4 in a “complex situation,” leading to a “difficult firefight.” During a Pentagon news conference, he tried to outline what the military knows.

He said a group of 12 American forces accompanied 30 Nigerien forces to an area about 85 kilometers north of the capital on Oct. 3. When they sought the next day to return, they encountered about 50 enemy fighters traveling by vehicle, carrying small arms and rocket-propelled grenade launchers.

Within an hour of taking fire, the team requested support. Within another hour, a remote plane flew above. Later, French jets arrived and ferried wounded Americans to safety. The bodies of three Americans killed in the fighting were transported out of the battle scene, but one — Sgt. La David Johnson — wasn’t recovered until Oct. 6.

Members of Congress are demanding answers almost three weeks after the ambush in a remote corner of Niger, where few Americans travel. Last week, Sen. John McCain, the Republican chairman of the Armed Services Committee, even threatened a subpoena to accelerate the flow of information from the administration.

WASHINGTON (AP) — The American people and the fallen soldiers’ families deserve answers about a deadly ambush in the African nation of Niger, the top U.S. general said Monday, without being able to provide many himself.

Three weeks after the attack by presumed Islamic State forces, Marine Corps Gen. Joseph Dunford, the Joint Chiefs of Staff chairman, said several matters must still be resolved. They include whether the U.S. had adequate intelligence and equipment for its operation, whether there was a planning failure and why it took so long to recover one of the bodies.

Dunford said the four U.S. soldiers died after a battle that started Oct. 4 in a “complex situation,” leading to a “difficult firefight.” During a Pentagon news conference, he tried to outline what the military knows.

He said a group of 12 American forces accompanied 30 Nigerien forces to an area about 85 kilometers north of the capital on Oct. 3. When they sought the next day to return, they encountered about 50 enemy fighters traveling by vehicle, carrying small arms and rocket-propelled grenade launchers.

Within an hour of taking fire, the team requested support. Within another hour, a remote plane flew above. Later, French jets arrived and ferried wounded Americans to safety. The bodies of three Americans killed in the fighting were transported out of the battle scene, but one — Sgt. La David Johnson — wasn’t recovered until Oct. 6.

Members of Congress are demanding answers almost three weeks after the ambush in a remote corner of Niger, where few Americans travel. Last week, Sen. John McCain, the Republican chairman of the Armed Services Committee, even threatened a subpoena to accelerate the flow of information from the administration.