Kremlin file photo

And in the beginning of March Russia announced that it was looking to buy five more dolphins for the unit — two females and three males.

After Russia's seizure of the dolphins in March 2014, RIA Novosti wrote that the "dolphins are trained to patrol open water and attack or attach buoys to items of military interest, such as mines on the sea floor or combat scuba divers trained to slip past enemy security perimeters, known as frogmen."