The Ukranian navy are arming dolphins with knives and pistols to defend against underwater attackers.

" Killer dolphins with knives and pistols attached to their heads. "

The bizarre tactic is part of the country's marine mammal program which aims to train dolphins to attack enemy swimmers using special weapons attached to their heads as well as to seek out and mark underwater mines. Described as "counter-combat swimmer tasks in order to defend ships in port and on raids" the exercises are being carried out at the state oceanarium in Sevastopol.This isn't the first time dolphins have been trained for military purposes either, during the Cold War the Soviets once deployed dolphins equipped with carbon dioxide filled syringes, trained them to attach mines to ships and even explored the idea of having them parachute in to the sea from an aircraft.