Hambali is alleged to have been the leader of Jemaah Islamiyah, a South-east Asian affiliate of al-Qaeda. The Pentagon said in a brief statement on the case that he was accused with Mohammed Nazir Bin Lep and Mohammed Farik Bin Amin, who are from Malaysia, of planning and aiding the attacks.
All three were captured in Thailand in 2003 and held in CIA custody before they were taken to Guantanamo three years later.
The October 2002 bombings on the tourist island of Bali killed 202 people, mostly foreign tourists, including 88 Australians. Abu Bakar Bashir, a cleric who inspired it, along with other attacks, was released from an Indonesian prison earlier this month after completing his sentence for funding the training of Islamic militants.
The August 2003 attack on the Marriott hotel killed 12 and wounded about 150.
The timing of the charges, which had been submitted under former president Donald Trump but not finalised, caught lawyers for the men by surprise and would seem to be in conflict with President Joe Biden’s intention to close the detention centre.
General Lloyd Austin, Biden’s nominee to be secretary of defence who is expected to be confirmed on Saturday (AEDT), this week reaffirmed the intention to close Guantanamo to the Senate committee considering his nomination.
“The timing here is obvious, one day after the inauguration,” said Marine Corps Major James Valentine, the appointed military lawyer for the most prominent of the three. “This was done in a state of panic before the new administration could get settled.”
A spokesman for the military commissions, which have been bogged down for years over legal challenges largely centred around the brutal treatment of men during their previous confinement in CIA detention facilities, had no immediate comment.
Now that the convening authority has approved charges, the US must arraign the prisoners before the military commission at the base in Cuba. Court proceedings at Guantanamo have been halted by the pandemic and it’s not clear when they will resume.
In December, Indonesian police arrested a man believed to be the military leader of Jemaah Islamiyah network.
The most prominent Guantanamo case, involving five men charged in the September 11, 2001, terrorist attacks, has been stuck in the pre-trial phase since their arraignment in May 2012. No date for the death penalty trial has been set.
The US holds 40 men at Guantanamo. Former president Barack Obama sought to close the detention centre, move the prisoners to facilities inside the United States and transfer military trials to civilian courts.
Obama reduced the prisoner population but his effort to close Guantanamo was blocked by Congress, which prohibited transferring anyone from the US base to the mainland for any reason.
Biden has said he favours closing the detention centre but has not yet disclosed his plans for the facility. In written testimony to the Senate, Austin said he would work with others in the administration to develop a “path forward” to closure.
“I believe it is time for the detention facility at Guantanamo to close its doors,” he said.