2 green navigation lights were seen crossing highway 285 20 minutes north of Roswell, NM.I was driving north from Roswell tonight on HWY 285 heading back to ABQ. I was approximately 20 minutes north of Roswell at approximately 7:14 PM, when I caught a glimpse of a green light on the west side of 285 heading east. It immediately caught my attention, so I leaned forward toward my windshield to get a better look and I noticed that there were 2 green lights. 1 seemed to be following the other. 2 distinct aircrafts. These green lights resembled the same red and white navigation lights found on a commercial aircraft, but these green lights belonged to a much smaller, much more agile aircraft and they did not blink, they remained the same intensity.I immediately locked up the brakes and came to a halt on the right shoulder of the road. I killed the radio and rolled down my passenger window to try to hear what the crafts sounded like but I could hear nothing.I could only see the 2 aircrafts for a few more seconds before they disappeared. These 2 green lights were approximately 1/4 mile in front of me on 285 flying at approximately 300 yards off the deck. Their flight pattern did not resemble that of a fighter jet, a personal jet, a commercial aircraft, nor a helicopter.I have experienced the "Rip" sound of a combat jet flying directly over me while driving in northern Nebraska and this was nowhere close to that or the sound of a helicopter.These 2 crafts were either a new military concept that obviously must be tested at night under the blanket of darkness or they were UFOs.