After seizing political power in France in a 1799 coup d'état, he crowned himself emperor in 1804. Shrewd, ambitious and a skilled military strategist, Napoleon successfully waged war against various coalitions of European nations and expanded his empire.
The short term was that Japan surrendered the long time effect we're the diseases caused by radiation poisoning the long term effect is more important because it led to Japan's surrender and people we're and still are dying to this day