Builder 1st Class David Rutherford, a Reservist assigned to Naval Mobile Construction Battalion 14, fills out the command post board with information communicated from a mock fire team during a battalion command post exericse, or CPX, at Naval Construction Battalion Center Gulfport, Mississippi, May 16, 2019. CPX, which is conducted in preperation for the battalion field training exericse, is a battalion communications exercise used to practice and assess the unit's ability to communicate effectively across multiple channels in an operational environment. (U.S. Navy photo by Mass Communication Specialist 1st Class (SW/AW) Jessica Dupree/RELEASED)

Photo by: Petty Officer 1st Class Jessica  |  VIRIN: 190523-N-ZY182-7965.jpg