Germany
No, Britain wasn't responsible. Austria Hungary was.
World War 1 was started after the sinking of the Lusitania.
Germany
Probably artillery; it was responsible for many of the deaths in World War 1.
imperialism
Everyone in a way but mostly it was Germany
Machine gun
ataturk
No. It may have contributed to WWI, but was not entirely responsible.
No, and I'm surprised that it is even suggested.
nazism and conquering