White lights, triangle shape, low altitude, slow speed. I have a military backround.Driving home, as we approached our driveway we noticed what we thought was an aircraft flying over the property. We quickly realized that this was not a plane or helicopter as it was flying at a very slow speed no more than 200-240' above the field. The craft had three very intense bright lights in a triangle shape with three not so brights in between along the inside edge.We quickly pulled into the driveway and hopped out and ran into the field just as it proceeded over the treeline. The craft could not have been going faster than 40-60 MPH and made no noise whatsoever. The craft was 25 yards in length at most.