U.S. Navy Ens. Heather Bacon-Shone, Tactical Advisor (TACAD) with the Strategic Sealift Officer program, reviews tactical signaling with able-bodied seaman Joshua Sheldrick aboard the M/V Patriot during convoy operations in the Atlantic Ocean as part of DEFENDER-Europe 20. TACADs provide tactical information and advise civilian ship masters of potential threats as they train to work in increasingly contested environments. (U.S. Navy photo by Ensign Christian Morris)