underwater swimmer

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

underwater-to-underwater missile

underwater robotic system for the autonomous neutralization of underwater mines

frogman (military swimmer)

rescue swimmer

surface swimmer

swimmer's harness

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

Unmanned Underwater Vehicles (UUV)

advanced underwater weapon

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-to surface missile

underwater-to-surface guided missile

fire underwater