MILLINGTON, Tenn. (Feb. 9, 2023) Master-at-Arms 2nd Class Sean Marleau detains a suspect in a simulated security threat onboard Naval Support Activity Mid-South during the Citadel Shield-Solid Curtain Exercise 2023 (CS-SC 23), Feb. 9, 2023. CS-SC 23 is a two-part, force protection exercise that is being conducted nationwide on Navy installations Feb. 6-17. The annual exercise is not in response to any specific threat, but is used to evaluate the readiness of fleet and installation security programs. (U.S. Navy photo by Mass Communication Specialist 2nd Class Austin Collins)