The comments come as U-S President Donald Trump called on NATO allies to increase their defence spending.
Mr Abbott has told Sky News, while defence spending has increased in recent years, the government needs to invest more.
Australia broadens its military support to Afghanistan
Victoria 190 & 490 Visa invitation February round update Source: AAP
Former Prime Minister Tony Abbott says Australia needs to be able to defend itself without relying on help from the United States.
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