The demands would greatly extend Japanese control of Manchuria and of the Chinese economy, and were opposed by Britain and the United States. In the final settlement Japan gained a little but lost a great deal of prestige and trust in Britain and the US. They were and example of foreign imperialism because it was an attempt by Japan to conquer China while they were too weak to resist.
The Chinese people responded with a spontaneous nationwide boycott of Japanese goods; Japan's exports to China fell 40%. Britain was affronted and no longer trusted Japan as a partner. With