<span>Japanese militarists hoped to build an empire to rival western colonial empires.--Manchuria was rich in iron ore needed to become an industrial power.
Japan hoped to become a 'western' power by gaining an empire. Manchuria was a good choice because of the resources available to Japan for industry. These resources would allow for more modern transportation and the creation of a steel industry.
</span>
One reason is the policy of salutary neglect. Salutary neglect was a policy of Britain which basically meant that the colonies didn't have to follow all the British laws as long as they didn't cause any problems. People were satisfied with ti because they weren't bothered by Britain. When the French-Indian war ended, the policy of salutary neglect was abandoned and the crown started pressuring people more to obey the laws and this caused mass dissatisfaction.
Another is the political power that they had. Before 1763, they were allowed to purchase land and deal with the natives in such purchases and if they were rich enough they could even start their own colonies as governors or rule their own colony as a company. This was forbidden after 1763 and all governing started belonging to the British crown exclusively.
economic growth and increased urbanization
