What if the Showa Emperor were not tried and executed for war crimes at the conclusion of the Second World War?
Could the US simply exile him? Or perhaps even retain the dynasty in some form (perhaps ASB since about 97 percent of Americans wanted Hirohito executed or exiled or imprisoned, but I think its possible even if a stretch and would be a compromise that'd give way more stability than there was in the end)?
Likewise, what effect would the alternatives have on the military resistance that followed and the occupation force which had to fight that over the course of something like a decade or so?