The head of state took part via video link in the ceremony of hoisting the naval flag on ships entering the Navy and launching the nuclear submarine Imperator Alexander III.
“I note that four more such submarines will be built as part of the current state armament program.
That will ensure Russia's security for decades to come," Putin said.
Earlier it became known that the nuclear submarine cruiser Generalissimo Suvorov, the small missile ship Grad, the sea minesweeper Anatoly Shlemov were accepted into the Russian Navy.