求翻译：亨利古堡垒始建于十九世纪初。当时美国与即将成为加拿大的英属北美殖民地正处于冷战时期。那时并没有国际分界线，于是便建造了一连串的城堡.是什么意思？

Henry ancient fortress was built in the early nineteenth century. At that time the United States and will soon become Canada's British North America in the Cold War. When there is no international dividing line, so they built a castle.

Old Fort Henry was built in the 19th century. At that time, the United States and Canada are in the process of becoming a British colony in North America during the Cold War. And then there is no international boundary, and thus they constructed a series of Castle.

The Henry ancient fortress beginning constructs at the beginning of the 19th century.At that time US with soon became Canada's England to be the North America colony to be in the cold war time.At that time not international separatrix, therefore has then constructed a succession of castle.

Henry ancient fortress was built in the early 19th century. When United States and will soon become Canada's British North American colonies are in the period of the cold war. There was no international boundaries, so they built a series of castles.

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