Five men have gone on trial accused of their part in a plot to create terrorist training camps in the UK.
Atilla Ahmet attended meetings promoting terror, jurors heard
Among the five, who deny the charges, is Mohammed Hamid, accused of inciting young Muslims to commit acts of terror.
Prosecutors at Woolwich Crown Court said Mr Hamid, 50, from east London, set up camps attended by 21/7 plotters.
The five are said to be linked to Atilla Ahmet, 43, of south-east London, who, it was revealed, pleaded guilty to soliciting murder in a separate case.
'Attempts to kill'
Mr Hamid, of Clapton, stands accused alongside Mousa Brown, 41, of Walthamstow, east London; Kibley da Costa, 24, of West Norwood, south-east London; Mohammed Al-Figari, 42, of Tottenham, north London; and Kader Ahmed, 20, of Plaistow, east London.
The prosecution told jurors that Mr Hamid was involved in the radicalising of young Muslims for two years from 2004.
Alleged terrorist training took the form of camping trips and paintballing excursions around Britain, said David Farrell, prosecuting.
Mr Farrell added that the trips were intended to "foster within the participants that they were training for 'Jihad' against the 'Kuffir', or non-believers".
He said: "A number of young men who attended camps organised by Hamid were in fact involved in attempts to kill and seriously injure passengers on the London transport network on 21 July, 2005."
The pleas of Ahmet - the alleged "emir", or leader, of the five men - were disclosed on Wednesday after reporting restrictions were lifted at Woolwich Crown Court.
The court was told that in a separate, but related, hearing at the Central Criminal Court, Ahmet, of Lewisham, pleaded guilty to three counts of soliciting murder.
The jury were told Ahmet boasted of being "the number one al-Qaeda in Europe".
Jurors also heard that Ahmet went to Mr Hamid's home to attend meetings, where Mr Farrell said "aggressive unlawful violence" was promoted.
Mr Farrell added: "At meetings held at Hamid's home address and elsewhere, the methods of Hamid and Ahmet involved the encouragement of the use of unlawful violence in the name of Islam."
'Groomer and corrupter'
The court heard that some of those involved in the failed 21 July attacks also met at Mr Hamid's home.
Mohammed Hamid (above) is charged under the Terrorism Act 2006 with providing weapons and terrorist training. He faces additional charges of soliciting murder, and one charge of possessing terrorist documents
Mousa Brown is accused of providing and receiving weapons training
Kibley da Costa is charged under the Terrorism Act 2006 with providing terrorist training and with attending terrorist training camps
Mohammed Al-Figari is charged under the Terrorism Act 2006 with attending terrorist training camps
Kader Ahmed is charged under the Terrorism Act 2006 with attending terrorist training camps
Evidence of phone contact between Mr Hamid and the four convicted would-be bombers - Muktar Said Ibrahim, Hussein Osman, Ramzi Mohammed and Yassin Omar - was shown to the jury.
Mr Farrell said that on the evening of 7 July 2005, a text message was sent from Mr Hamid's mobile phone to a mobile owned which was owned by Osman.
It read: "Assalam bro, we fear no-one except ALLAH, we will not change our ways, we are proud to be a Muslim an we will not hide. 8pm Friday at my place be there food an talk AL-QURAN."
Earlier, the jury had heard that Al-Quran was an alias used by Mr Hamid.
The jury heard surveillance tapes in which Mr Hamid was also heard to discuss the 7/7 attacks.
"How many people did they take out?" he is heard asking.
When given the reply of "52" Hamid then said: "That's not even breakfast for me. That's not even breakfast for me in this country."
Mr Farrell said: "The prosecution do not suggest that Hamid's role in seeking to train and influence those who took part in 21/7 was the only training or influence they received.
"The prosecution's case is that Hamid, assisted by Ahmet, was a recruiter, groomer and corrupter of young Muslims.
Mr Farrell added that Hamid was arrested at a stall in London's Oxford Street in October 2004 alongside Muktar Said Ibrahim, the ringleader of the failed 21 July plot.
Mr Farrell said: "Hamid told the police that his name was 'Osama bin London' and on the way to the police station he said to a police officer 'I've got a bomb and I'm going to blow you all up'."
Jurors were told that Mr Hamid's home was bugged by police from September 2005.
When the defendants were arrested, material including CDs and DVDs containing recordings of murders, beheadings and suicide bombings were seized from their homes, Mr Farrell said.
The case continues.