"According to our analysis, this system will be very efficient and meet the norms of international maritime law," said Vladimir Kozin, a deputy director of the Russian Foreign Ministry's information and press department.
Kozin did not give any further details on the future missile defense system. He was speaking at a video conference between Moscow and Kiev on European security.
The move is almost certain to be interpreted as Russia's response to NATO's European missile shield, which it says it needs to counter potential missile attacks from "rogue states," such as Iran and North Korea.