Northern Lights The Northern Lights over the North Atlantic as observed from Standing NATO Maritime Group One flagship HDMS Esbern Snare during exercise Trident Juncture, Nov. 4, 2018. SHARE IMAGE: Download Image: Full Size (1.48 MB) Tags: European Security, NATO, NATO, Trident Juncture Photo By: NATO photo VIRIN: 181104-F-ZZ999-696.JPG Photo Gallery