Mk 53 Nulka decoy launching system

The Mk 53 Nulka is an active, off-board, ship-launched decoy developed in the late 1990s by Australia and the U.S. to counter a wide spectrum of present and future radar-guided anti-ship cruise missiles (ASCMs). ("Nulka" means "to be quick" in the Australian aboriginal language.)

The Nulka decoy employs a broadband radio frequency repeater mounted atop a hovering rocket platform. The decoy is designed to lure incoming missiles away from surface ships in coastal and open-ocean...