Japan exercised its newfound military might when it invaded in 1931.
a. russia
b. korea
c. china
d. manchuria

d. manchuria

Explanation:

Since the beginning of the 20th century, Japan was one of the main powers of the planet, thanks to its strong economy and its exports. In 1931, there was an incident in which the Japanese army that guarded the railroad of South Manchuria, owned by Japan, was involved. Japan accused the Chinese of flying part of the section of the railway. It was suspected that the culprits were actually the Japanese army itself, and that this was an excuse to annex the Chinese territory.

In 1932 Japan, claiming the defense of their interests, and once the Chinese troops were expelled, created the Republic of Manchukuo. In reality it was but a protectorate intervened by the Japanese through a puppet government headed by the last emperor of China, Puyi, off the throne after the proclamation of the Chinese Republic in 1912. In 1934 he would be appointed emperor of Manchukuo, until In 1945, after the Japanese defeat in World War II, it disappeared as a state.

i believe it d) heterogeneous

d will be ur answer

to mark sum 1 brainliest there has to be 2 answer at least