The distances here are not small though. The US Marine base in Australia is in Darwin area in the Northern Territories (the area anyway) and the rest of civilized Australia is down south and east along the coast. So, basically the back of beyond. The base is a staging area for a bunch of systems that would further forward deploy to the islands in the western Pacific in the event of a ...thing with the PRC. There are a couple of these already deployed to the Philippines and may be deployed to Japan which are causing the PRC leadership to lose their minds. This would be the Typhon (not typhoon) missile system. Muy bueno for us system.
edit: looks like kegsbreath and the Japanese decided to deploy to Japan.
https://www.defensenews.com/global/asia-pacific/2025/09/15/us-army-reveals-typhon-missile-system-in-japan/