The Underwater Defence & Security, organized by the TDNUK The Development Network will take place from 24th January to the 26th January 2017 at the Portsmouth Marriott Hotel in Portsmouth, United Kingdom. The conference will cover areas like Anti-Submarine Warfare, Mine Counter Measures, Maritime Patrol & Air Assets, Unmanned Systems and ROVs, Weapons, Decoys and Counter Measures, C4ISR, Hydro-graphic Survey.