A British taxi driver has been sentenced to life imprisonment for killing Sergeant First Class Randy Johnson in a roadside bomb attack in Iraq.
Anis Sardar, 38, from north London, was found guilty of building improvised explosive devices (IEDs) in Syria and using them in a roadside attack near Baghdad in September 2007.
The attack resulted in the death of Sergeant First Class Randy Johnson, of 2nd Stryker cavalry regiment, as he was traveling in an armoured vehicle.
Sardar was charged with murder in 2012, after the FBI discovered his fingerprints on tape used to construct the bombs.
Sardar had been working as a taxi driver in London, but told Woolwich Crown Court that he had travelled to Iraq in 2007 in order to help a friend's family during the insurgency.
While he initially denied any involvement in the attacks, he later admitted that he helped build two of the four bombs used, although his fingerprints were not on the bomb that killed Sgt Johnson.
Sardar also told the court that he had travelled to Iraq from Syria in order to protect Sunni Muslims from Shiite militias, and did not intend to attack American forces.
On Thursday, a jury took 11 hours to find Sardar guilty of murder, and on Friday he received a life sentence. He will spend at least 38 years in jail before there is a possibility of parole.
Commenting on the verdict, Mr Justice Globe said: "I am satisfied that at the material time of the offences you had a mindset that made Americans every bit [as much] the enemy as Shia militias. Both were in your contemplation at all times."
He added: "By the jury's verdict it is a loss for which you are directly responsible."
Sardar is the first person to be successfully prosecuted in Britain for participating in the Iraq insurgency.
Sue Hemming, head of counter-terrorism at the Crown Prosecution Service, said: "This was a landmark prosecution that shows we will do everything in our power to ensure that international borders are no barrier to terrorists in the UK being brought to justice for murder committed anywhere in the world.
"Anis Sardar is a highly dangerous man who created bombs so large that not only did they tragically kill Sgt Randy Johnson, but they put other lives in danger and caused significant damage to heavily armoured US military vehicles."