British Muslim converts of Nigerian descent Michael Adebolajo, 28, and Michael Adebowale, 22, are both charged with the murder of Drummer Lee Rigby at Woolwich in south-east London on May 22.
They spoke only to confirm their names as they appeared at the Old Bailey court in London via video link today from separate rooms at the city's high-security Belmarsh prison.
They were remanded in custody and will re-appear in court to enter their pleas in the case on September 27.
An inquest heard the 25-year-old soldier suffered such "extensive and serious" injuries that he had to be identified using his dental records.
More From This Section
Adebolajo and Adebowale are also charged with possession of a firearm with intent to cause others to believe that violence would be used and the former faces further charges for the attempted murder of two police officers.
He appeared to still have his left arm in a bandage after being shot by armed officers at the scene of crime.
Sobs could be heard in court as Justice Sweeney announced the trial date.