Trident Juncture U.S. Marines look for the enemy during night exercises during Trident Juncture 2015 in Almería, Spain, Oct. 31, 2015. The exercise allows both sides to learn about each other’s tactics, techniques and operating procedures. The Marines are assigned to the 4th Marine Division's 4th Light Armored Reconnaissance Battalion. U.S. Marines Photo by Sgt. Sara Graham. SHARE: Download: Full Size (0.47 MB) Credit: Sgt. Sara Graham VIRIN: 151031-D-HV319-003.JPG Photo Gallery