A DECORATED Navy SEAL leader denies allegations of slitting the throat of a 15-year-old ISIS prisoner of war in Iraq.

Special Operations Chief Edward Gallagher refutes claims he plunged a knife into the bloody, wounded body of a young ISIS fighter and fired sniper rounds at innocent civilians during his time spent in Iraq.

Investigators allege that Gallagher — a two-time recipient of the prestigious Bronze Star — killed the injured 15-year-old while he was being treated by SEAL medics following an airstrike.

Naval Criminal Investigative Service Special Agent Joe Warpinski previously told the court that a SEAL medic told him he believed he had just stabilized the teen when Gallagher "walked up without saying anything at all" and stabbed him to death.

The prosecutors also say he then posed for photographs with the fighter's body, holding his head in one hand and his blade in the other — and sent one of the images to a fellow SEAL with the caption "I got him with my hunting knife."

And Gallagher allegedly killed an Iraqi girl walking along a riverbank and an elderly man holding a jug of water in unrelated incidents.

Prosecutors also claim that Gallagher threatened other SEALs in his platoon when they tried to report his misdeeds.

The married father of three has been held in Navy a brig in California since his arrest on September 11.

His brother Sean Gallagher said: "He's missed Christmas. He's missed Thanksgiving. He has a wife and three children that he loves deeply and that miss him sorely.

"We're asking for the Navy to see the error of their ways and right the wrong that has been perpetrated against a decorated war hero."

Gallagher’s lawyer, Phil Stackhouse, said his client will be entering not guilty pleas against the charges that face him, which include premeditated murder and aggravated assault.

If convicted, the 19-year Navy veteran faces life in prison.

In late November Sean Gallagher accused the investigators behind the claims of trying to "take down" an "elite warrior" so they can advance their own careers.

Now Gallagher's attorney Stackhouse said his client looks forward to clearing his name at trial.

He fought in Iraq and Afghanistan several times, but it was during Gallagher’s last combat deployment in 2017 he lost his way, prosecutors say, and "decided to act like the monster the terrorists accuse us of being."