Pramote Phromin, a spokesman for the Internal Security Operations Command, told Reuters news agency that up to 60 militants wearingmilitaryfatigues approached the base at around 01:00 (18:00 GMT on Tuesday).
After one visit to Afghanistan, the German media said had he turned up at an evening social function still wearing his militaryfatigues from the day's visit to the troops.
Manning and most of the other members of the military in the courtroom were wearing blue Army uniforms Tuesday rather than the camouflaged fatigues they've worn in previous hearings in the case.