A possible UFO; because of the strong lighting surely not an ordinary aircraftWe were positioned near a military area called "Drgomalj", which is used by the croatian army and NATO. While looking at the stars, we noticed an object which is flying very low, not at all usual for an ordinary airplane. It had the form of a triangle, we could see it for aprx. one minutes and then it disappeard. It was lighting strong, if it would not move, we could say it is a star. There was no sound. Hearing military area, many would say it is an aircraft of the military, but the lightning was too strong and Croatia does not have any stealth aircraft.((NUFORC Note: Witness elects to remain totally anonymous; provides no contact information. PD))