A Navy Seal officer alleged to have killed an injured ISIS prisoner of war in Iraq will be court-martialed on charges of premeditated murder and other war crimes.

Special Operations Chief Edward 'Eddie' Gallagher has been in custody at Naval Base San Diego since November.

Military prosecutors say they have evidence to charge Gallagher with premeditated murder and attempted murder for allegedly slicing the throat of a 15-year-old combatant with a hunting knife, according to KNSD-TV.

The 39-year-old also posed next to the militant's body for photos in Mosul in May, 2017, prosecutors claim.

He has also been accused of performing a re-enlistment ceremony alongside the corpse and in front on American flag, according to prosecutors.

Afterwards, Gallagher allegedly text a photo of the body to a fellow SEAL, writing: 'I got him with my hunting knife.'

A couple of months later, he also allegedly fired at a male and female noncombatant.

Edward Gallagher is said to have stabbed a teenage ISIS fighter in the neck and body before posing with the boy's body

Prosecutors also claim to have evidence that Gallagher, a married father of three, tried to bribe fellow Navy SEALs not to cooperate with Naval Criminal Investigative Service officers.

The Navy has charged Chief Gallagher with premeditated murder, attempted murder and nearly a dozen other offenses, including obstruction of justice and bringing 'discredit upon the armed forces'.

Gallagher has denied the allegations. His lawyer argues that the 15-year-old ISIS fighter was killed in an aerial strike, and not by his client.

Phil Stackhouse, a private attorney hired by Gallagher, said fellow SEALs turned him in because he was too tough on them.

Gallagher will be arraigned at Naval Base San Diego on Friday. If convicted, he could face life behind bars.

Gallagher's wife and the mother of his children, Andrea, also said in an interview: 'This is not who Eddie is.

'He is a lifesaver. He is that guy who runs into the burning building when other people are running out.'

Gallagher, a sniper and a medic, has served overseas in different deployments for 19 years.

Sean Gallagher (right) said his brother Edward is innocent of any crime and can be described as a 'modern day' war hero who has served as a Navy Seal for 19 years

After his latest tour, he was named named the top platoon leader in SEAL Team 7 and nominated for the Silver Star, the military’s third-highest honor, The New York Times reported.

However the disturbing allegations from the same deployment have since come to light.

Gallagher is said to have 'with premeditation, murder a wounded male person' under his care by 'stabbing him in the neck and body with a knife,' CNN reported.

An organization of Navy SEALs - Brotherhood Beyond Battlefield - has launched a fundraising drive to help Gallagher.

The group says the charges are 'drummed up' and slammed the 'thugs' of NCIS for using 'Gestapo tactics' in arresting Gallagher at his home in September.

So far, the group has raised nearly $200,000 toward Gallagher's defense.

Sean Gallagher, Edward's brother, accused those investigating the case of trying to advance their own careers.

Sean Gallagher told Fox and Friends: ‘This investigation is not about justice and the truth, it’s about a win.'

‘A SEAL is a shiny, golden nail where if you take them down it makes you look good,’ he added.

'My brother represents what is best about this country. He fulfilled a family tradition that we have of joining the service.

'If you were to imagine or create what a modern day war hero would be, it would be Eddie.'

Edward was in the process of transitioning to a non-combat advisory role for the Navy SEALs when he was taken into custody in September, according to his brother. Gallagher was planning to retire in the spring.

If convicted , Gallagher could face life in prison and it is expected that a trial will begin in 2019

Edward Gallagher, seen here with his wife Andrea, is currently in a military prison in California and his three children had to visit him there for Thanksgiving

Prosecutors argued that Gallagher was detained for trying to intimidate witnesses to the crimes he is alleged to have committed.

However Sean tells Fox News that his brother was expressing opinions in text messages to his friends, some who were contacted by the NCIS regarding the allegations against his brother.

If he is convicted, he could spend the rest of his life in prison. Sean claimed that Navy seals serving under his brother 'fabricated stories' because they weren't combat ready.

After his latest tour, fighting Islamic State militants in Iraq, he was named the top platoon leader in SEAL Team 7 and nominated for the Silver Star, the military’s third-highest honor.

Sean Gallagher (left) said 'disgruntled' seals serving under his brother 'fabricated stories' because they weren't combat ready and his brother (right) was a high

He fought in Iraq and Afghanistan several times and has been a Navy Seal for 14 years.

During a preliminary hearing in November, prosecutors presented accounts from several other SEALs in Chief Gallagher’s platoon describing his behavior as reckless and bloodthirsty.

They said he fired into civilian crowds, gunned down a girl walking along a riverbank and an old man carrying a water jug, and threatened to kill fellow SEALs if they reported his actions.

In May last year, Iraqi forces in Mosul caught an Islamic State fighter aged in his teens, who was left battered and bloody from the combat.

Investigators allege while the teen was receiving medical treatment from SEAL medics, Gallagher walked up and stabbed him in his neck and side with a knife, killing the fighter.

Then, they say, he 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'.

Edward was charged in October with multiple crimes in connection with the 2017 stabbing death of a detainee in Iraq

Some platoon members were so distraught by the chief’s actions, investigators said, that they tampered with his sniper rifle to make it less accurate, and fired warning shots to scare away civilians before the chief had a chance to shoot them.

'They said they spent more time protecting civilians than they did fighting ISIS', Special Agent Joe Warpinski of the Naval Criminal Investigative Service told the military court, according to a report in The New York Times.

Stackhouse said the charges were baseless.

He said the only evidence that the chief had killed anyone came from accounts offered by a few SEALs who were disgruntled because they could not meet their leader’s demanding standards.

'I promise you, we will call many more SEALs who will say none of this ever happened,' Stackhouse was quoted as saying by the Times.

Navy prosecutor Chris Czaplak said during the November hearing that the chief had done damage beyond murder and had undermined the values of the Navy Seals.

'Does the public still believe we are the good guys, because Chief Gallagher decided to act like the monster the terrorists accuse us of being?', he said.

'He handed ISIS propaganda manna from heaven. His actions are everything ISIS says we are'.