Late last night, US District Judge Gladys Kessler said the military must be allowed to carry out force feeding in the case of Abu Wa'el Dhiab because of the "very real probability that Mr Dhiab will die."
Lawyers for Dhiab are challenging force feeding during the hunger strike as abusive.
The Defence Department has said the military only feeds prisoners against their will to keep them alive, and follows all laws when it does so.
On Wednesday, the judge brushed aside the Justice Department's objections and ordered the government to produce 34 videotapes that show Dhiab being forcibly removed from his cell, followed by force feeding the hunger-striking prisoner.
In her order last night, she said the court will move quickly in the case to consider the merits. Kessler issued the temporary restraining order a week ago.
If she issues another temporary order to stop the forced feeding, Dhiab probably will die, the judge said. Alternatively, allowing the force feeding possibly will result in great pain and suffering, she added.
