WELLINGTON, NEW ZEALAND -- Australia announced Wednesday it would begin building its own guided missiles in close collaboration with the U.S. as it seeks to boost its defence capabilities.

Citing the "changing global environment," Prime Minister Scott Morrison said it would partner with a weapons manufacturer to build the missiles in a plan that would create thousands of jobs as well as export opportunities.

Morrison said it would spend 1 billion Australian dollars (US$761 million) on the plan as part of a huge 10-year investment in defence and the defence industry.

"Creating our own sovereign capability on Australian soil is essential to keep Australians safe," Morrison said.

Australia is part of the "Five Eyes" intelligence alliance with the U.S., Canada, Britain and New Zealand.

"We will work closely with the United States on this important initiative to ensure that we understand how our enterprise can best support both Australia's needs and the growing needs of our most important military partner," Defence Minister Peter Dutton said.