This is an opinion question, there is not a specific answer. Look at the reasons that Germany and Japan went to war, and then you can determine for yourself if they were justified.
ration
Better than a hot war.
It went on a war economy, with food and clothing rationed.
Japan bombed pearl harbor
He allowed Japan to attack the US at Pearl Harbor, Hawaii
He allowed Japan to attack the US at Pearl Harbor, Hawaii
Germany invaded Poland and Japan invaded China.
It is good to boost american morale. It will end the war sooner. Japan will never have the ability to go to war never again.
To bomb Pearl Harbor. This triggered the War.
Japan was defeated in World War II.
japan is..... JAPAN