A The Autobiography is considered a Primary Source
Answer:
Qin Shi Huang, decided that he wanted a single giant wall to protect his northern borders.
Explanation:
The geographical feature that separates the United Kingdom from the rest of Europe is the North Sea.
The North Sea is the water body that lies between the United Kingdom and the continental part of Europe. With France and Benelux being just on the south of it, and the Scandinavian Peninsula on the east. We can also include the English Channel, as it is separating part of the north of France and the south of the United Kingdom.
This was not always the case, and the territory of the United Kingdom was relatively recently (geologically speaking) connected by land with the rest of Europe through a land that is now bellow water called Doggerland, and that was until the end of the last ice age.
The war in the eastern and western front was the same in the sense that both fronts used similar or even the same tactics as at the time of the war, this was the only way how war was being done. On both fronts, there were immense artilery shellings going on together with huge loss of life. However, in the eastern front, one has to add the horrible conditions - extreme cold, rain, winter, etc. to this.