帮忙翻译一句话啊!!!(汉译英)

The position where Chengdu located in is a special economical area in Southwest China, which make Chengdu a very important political and military place in history.

Due to the special economical and geographic position of Chengdu in the southwest part of China, it became a very important political and military field in history.

Because of its special economic and geographical location in the south-west of China, Chengdu City is considered as an important place for politics and military in history.

Due to Chengdu in southwest China is in a special economic location, it can become an important historical political and military places.