Poison Gas was not a new weapon or new method of warfare used during WWI.
He was the prime minister of germany
After the 9/11 terrorist attacks many americans treated muslims quite differently, even though they stated they were not prejudiced. these negative feelings were a part of their unconscious; that is, all mental content that is not in the conscious, there we can find experiences and repressed memories of the individuals, and we also have a collective unconscious, in which common experiences of humanity are found, and can be transmitted hereditarily.
In politics the term Regionalism, speaks of the movement or ideology that caters to a certain area or group of people that do not necessarily share the political identity,vision and commonwealth of the nation as a whole but to their individual needs, this was an important factor in the the American Civil War given that the Union(North) and the Confederacy(South) had major disputes over issues such as slavery, states rights and borders and tariffs, that ended up past politics escalating into an armed conflict.