Answer:rhineland was deemed a demilitarized zone to increase the security of France, Belgium, and the Netherlands against future German aggression. This area of Germany was also important for coal, steel, and iron production. ... Hitler used this as an excuse to send German military forces into the Rhineland.There are two main reasons why Japan invaded China. Manchuria, in China, was rich in natural resources and fertile land. On the other hand, Japan was an island country with virtually no natural resources. Around 1931, Japan was in the midst of a depression triggered by the Great Depression in the U.S
