180725-N-EG940-369 VIRGINIA BEACH, Va. (July 25, 2018) Boatswain’s Mate 1st Class Dave Lavko communicates with the pilot house of an Improved Navy Lighterage System (INLS) causeway ferry while participating in exercise Trident Sun 18. Trident Sun 18 is a maritime prepositioning force (MPF) operation intended to provide training to reserve component personnel with regards to the in stream offload of military vehicles and equipment. (U.S. Navy photo by Mass Communication Specialist Seamen Jacob Vermeulen).