advanced underwater weapon

remotely operated (underwater) vehicle (ROV / ROUV); underwater robot

underwater-to-underwater missile

underwater robotic system for the autonomous neutralization of underwater mines

Advanced Precision Kill Weapon System (APKWS)

advanced light antitank weapon

light advanced antitank weapon system

Advanced Anti-Tank Weapon System-Medium (AAWS-M / [ˈɔːsəm])

air-to-underwater missile

nuclear underwater burst

scuba (Self-Contained Underwater Breathing Apparatus)

small underwater craft

surface-to-underwater missile

underwater sticky foam

underwater target

underwater-launched missile system

underwater-to-air missile

underwater-to-surface missile

artificial underwater and beach obstacles

portable underwater tracking transducer

air-to-underwater guided missile

ballistic surface-to-underwater guided rocket

Basic Underwater Demolition / SEAL

underwater acoustic surveillance

underwater demolition

underwater listening post

underwater operation of engine

underwater sabotage forces and means

underwater swimmer

underwater-to surface missile

underwater-to-surface guided missile

fire underwater

integrated underwater surveillance system