The ongoing conflict in China led to a deepening conflict with the US in which public opinion was alarmed by events such as the Nanking Massacre and growing Japanese power. Lengthy talks were held between the US and Japan. The Japanese invasion of the south of French Indochina made President Franklin Roosevelt freeze all Japanese assets in the US. The intended consequence was to halt oil shipments from the US to Japan, which supplied 80 percent of Japanese oil imports. The Netherlands and Britain followed suit.