Doing research on my Chamberlain's Dream TL I came across this. During the March 15 incident in 1932, the plotters planned to assassinate Charlie Chaplin along with the Japanese Prime Minister. Apparently the idea being to provoke a war with the US.
Now I'm assuming the US wouldn't go to war over this, but I'm reasonably sure murdering one of the most popular US actors at the height of his career would have had an effect. So what would it do? Force the Japanese to attempt a crack down on the military? And if does, does this preserve the Taisho democracy or doom it several years early?