She means the French and Indian war.

她指的是法印战争。

These lakes provided the best way to move troops and supplies during the French and Indian war.

法国-印第安战争期间，这些湖泊为军队运送物资。

In 1752, when he was just 20, his wish became  a reality; he began his journey into military service that would last for several  years during the French and Indian Wars.

1752 年， 年仅 20 岁的他实现了愿望；在法国和印度战争期间， 他开始了服兵役的旅程， 并持续了数年。

Be that as it may, it appears that the colonists felt little irritation against the mother country on account of the trade and navigation laws enacted previous to the close of the French and Indian war.

尽管如此，由于在法国和印度战争结束之前制定的贸易和航海法， 殖民者似乎对祖国没有什么不满。