He did so because he wanted revenge on France and England for winning the first war. He was a young soldier in the WWI and felt that Germany was shamed after the war. So he started the second to gain respect back and to prove that their country was also a great superpower. He believed in racial purification and wanted to take over Europe and remodel it the way he wanted.
Wood's Despatch is the event observed in History of India under British Rule. Sir Charles Wood was the Preseident of Board of Control of the British East India Company. In 1854 he sent the Despatch to the then Governor Lord Dalhousie regarding the education in India. ... This is known as Wood's despatch
It was the abolition of serfdom and the establishment of a constitutional monarchy. Those involve in the revolt were also against the crowning of Nicholas I and this later led to a confrontation between the rebels and loyal troops. The revolt was suppressed and many were arrested. Though it failed it helped start the movements for revolution in Russia.