From the start of American involvement in World War II, Roosevelt took the lead in establishing a grand alliance among all countries fighting the Axis powers. He met with Churchill in a number of wartime conferences at which differences were settled amicably.
It failed because China is a land of the proletariat and the ruling party is a communist one while the fifth modernization was about introducing democracy. Since the party represents the working class and the will of the people in theory, democracy is against it since it would enable those who are against the party to also compete which would in theory mean that they are against the people.
The King decided if they deserved representation in Parliament