The space beyond the door was reminiscent of a military bunker. The walls were of stone, rather than ferrocrete, but the overall feel was the same. Olive green metal shelving along the walls held foodstuffs, medical supplies, and weapons—including a number of sophisticated-looking arrays of tubes that I guessed were anti-tank or anti-armor missile launchers. Military style cots filled alcoves to either side of the main room, and rebels—dressed like campesino farmers but moving with the purpose of trained soldiers—bustled back and forth. I heard the hiss of a ventilation unit and guessed that filtered air was being pumped in from somewhere outside.