Scott Morrison has sought to outline the government's defence credentials during a re-election pitch to West Australian voters.
Speaking at a business event in Perth on Friday, the prime minister announced a $1 billion boost to special forces units as part of Project Greyfin.
"This will ensure our special forces, particularly the SASR here in Perth, have the cutting-edge, world-class kit they need to support our national interests and keep our nation safe," he said.
The project funding will be spent over the next decade whenever upgrades are required for the units.
Mr Morrison also spruiked GST reform in the state, while launching a broadside against Opposition Leader Anthony Albanese.
The prime minister said he wanted the country to be stronger during uncertain economic times.
"I don't subscribe to the small-target philosophy of leadership that others do," he said in the speech.
"You can't as prime minister, you can't hide behind someone else when you don't know the answers, you've got to know the details."
Western Australia will be a key state at the May 21 election, with several marginal seats up for grabs.
While no WA seats changed hands at the last federal election, Labor believes it can win several in the west including Swan, Pearce and Hasluck.
Mr Morrison said GST reform had given greater funding to Western Australia.
"I certainly didn't choose to be a small target when I fought to ensure WA got its fair share of GST, making the case not in WA, but where it mattered in the eastern states, in the cabinet and in the parliament," he said.
"Next financial year will provide $5.9 billion in GST funding for the state, rather than $1.3 billion."
While Labor Premier Mark McGowan won the 2021 state election in a landslide, the Liberal prime minister stressed he had worked closely alongside him.
"The premier and I agreed on a single-touch model for environmental agreements to make it work better and avoid state and Commonwealth duplication while maintaining high environment standards," he said.
"We got all the premiers to agree, Labor and Liberal. I took it to the parliament, and Anthony Albanese and federal Labor sided with the Greens and not Premier McGowan and myself."
