Northern Guide Marine Corps Cpl. Aaron J. Troyer guides an assault vehicle onto a bridge at Camp Lejeune, N.C., Dec. 7, 2018, during Northern Steel, a large-scale field exercise. SHARE: Download: Full Size (3.07 MB) Tags: Marine Corps, Northern Steel 18 Credit: Marine Corps Lance Cpl. Adaezia L. Chavez VIRIN: 181207-M-QY799-0160C.JPG Photo Gallery