Was on a night patrol in military. was wearing night optics and felt a low rumble. was in thick forest and couldnt see anything at ground level so i looked up. that is when i saw this triangle shape right above. it was large and blocked any moon light we had. i could see it clearly with the optics in a green tint. i removed the optics and still could see the dark shape above. it hovered for at least 10 minutes i think. was keeping track of time for a meet up with another squad. we lost those 10 minutes i tracked when i looked at my watch after it left slowly. i asked others with me and they said they saw it too. i couldn't report it then because of looking like a fool in front of my commander. i have kept this quiet too many years because of that.