Nulka

thumb|right|A Nulka decoy being launched from a warship

Nulka is an Australian-designed and developed active missile decoy built by an American/Australian collaboration. Used aboard warships of the United States Navy, Royal Australian Navy, United States Coast Guard and Royal Canadian Navy, Nulka is a rocket-propelled, disposable, offboard, active decoy designed to lure anti-ship missiles away from their targets. It has a unique design in that it hovers in mid-air while drawing the incoming anti-ship missile. The hovering rocket concept was initiated in Australia by the Defence Science and Technology Group (DSTG), and the system was designed, developed and then manufactured by AWA Defence Industries (now BAE Systems Australia). BAE refers to Nulka as a "soft-kill defence system". The word "Nulka" is of Australian Aboriginal origin and means "be quick".