Displaying a firm Japanese-American alliance at home and abroad is meant to protect Japan, naturally, but also the peace and stability of the Indo-Pacific region and the world.
Like the false claims about weapons of mass destruction that led to the Iraq war, it is worrying that Australia is being dragged into a crisis of the US'-own making.
There are factors in both countries that influence those who make the decisions, and these factors are working to escalate tensions between the two countries.