Russian forces completed their takeover of the Ukrainian navy’s assets in Crimea with the storming of the minesweeper Cherkessy.

The Ukrainian navy has been reduced to only 10 vessels, with the other 51 it held at the beginning of this month, including its only submarine, now flying the Russian flag.

But of all the Ukrainian military assets Russia has seized during the annexation, none is quite as unusual as the combat dolphin program.

The Soviet Union began training dolphins and other marine mammals to locate mines, mark underwater and obstacles and detect – and if necessary kill – enemy frogmen in the 1960s.

For more, click here.