From the current issue of Foreign Policy:

It is not only China’s military capabilities, which it has been building for decades, that have caused anxiety [in Australia]. Rather, it is their increasingly aggressive use that has caused a growing sense of alarm. In just the last few months, Beijing has asserted control over Hong Kong, intruded into Taiwan’s airspace, trained guns on the Philippine Navy, harassed Malaysian vessels, sunk a Vietnamese fishing ship, rammed a Japanese coast guard vessel, reignited a deadly border conflict with India, and conducted cyberattacks and economic coercion against Australia.

[foreignpolicy.com]