In June, a Chinese fighter aircraft dangerously intercepted an Australian military surveillance plane in the South China Sea region in May, Australia's defence department said.
Tuesday's meeting of the defence ministers took place on the sidelines of an ASEAN gathering in Siem Reap, Cambodia.
read moreAfter Pelosi's visit, China announced it was halting dialogue with the United States in a number of areas, including between theater-level military commanders.
Pelosi's Taiwan trip infuriated China, which saw it as a U.S. attempt to interfere in its internal affairs.
The United States has no formal diplomatic relations with Taiwan but is bound by law to provide the island with the means to defend itself.