U.S. Marines from 4th Combat Engineer Battalion, 4th Marine Division, Marine Forces Reserve detonate an explosive to conduct breaching techniques with members of partner nation military services during exercise Bright Star 23 at Mohamed Naguib Military Base (MNMB), Egypt, Sept. 7, 2023. Bright Star 23 is a multilateral U.S. Central Command exercise held with the Arab Republic of Egypt across air, land, and sea domains that promotes and enhances regional security and cooperation, and improves interoperability in irregular warfare against hybrid threat scenarios. (U.S. Marine Corps Photo by Capt. Mark Andries)