How did the Japanese military threaten peace during the 1930s?
By invading China.
It had a relatively limited impact. It must be remembered that the US before WW II was not nearly the worldwide political and military force that it became only later in the war and after the war. At the time it was in absolutely no position militarily to for instance force Japan out of China and Manchuria, or threaten Hitler with instant retribution if he did not treat his European neighbors or the Jews more…
Explain the responses of the European democracies to the military aggression by Italy and Germany during the 1930's?
Many times. The worst of modern times was their invasion of Manchuria (part of China) in the early 1930s where they committed many crimes against the population. Later, during World War 2, they invaded the Philippines. During what we know as the Early Modern Era in the West, they invaded Korea. They also invaded Korea during the 1905 Russo-Japanese War.
Historians generally accept two incidents involving China in the 1930's with Imperial Japan. The first was the "Manchurian Incident" (Mukden Incident-near a famous Russian-Japanese battle from the 1904-1905 war) which occurred in 1931/1933, depending on your source, which entailed the destruction a railroad track in Manchuria, triggering a Japanese military response. The second incident, occurred at or near the "Marco Polo Bridge", in 1937/1939, again according to your source of information. This too, triggered a…
Isoroku Yamamoto was a Japanese Marshal Admiral and the commander-in-chief of the Combined Fleet during World War II, a graduate of the Imperial Japanese Naval Academy. General of the Army Douglas MacArthur was an American general and field marshal of the Philippine Army who was Chief of Staff of the United States Army during the 1930s and played a prominent role in the Pacific theater during World War II.