When people don't clearly recognize the obstacle causing their frustration, they
a. are said to be experiencing a minor frustration.
b. usually won't become aggressive.
c. will probably strike out at any convenient target.
d. won't resort to physical violence.
the answers you may be looking for are:separation of nationalities territorial disputes over lost territories
a great example for the territorial disputes was when hitler sent the wehrmacht to retake poland which was part of the german empire at one point.
if you want you can put this as the three points why it was wrong and why it should have been stopped china had to cede the territory of hong kong to british control, open treaty ports to trade with foreigners, and grant special rights to foreigners operating within the treaty ports.
the disagreement with the catholic church that was most influence by the renaissance idea of humanism was that it was wrong for the church to sell indulgences, since this implied that humans could not have a strong, individual relationship with god.
so whats the question?