Good grief! You think you can summarize Japan's motivations for their attack on the US and their subsequent defeat at the hands of the US forces in a single sentence?
I summarized the emotions of my father who fought in Europe and was badly injured. He had hoped to move on to fight the Japs in the Pacific, but he couldn't.
His emotions were more than wanting to just return home.
This phrase described that:
Take your non-sequitur, rude response and blow in out your a*s.