Question

They had to fight hard to gain ____ independence.​

Answer 1

Answer:
i don't have the context to know for sure, but one thing the blank could be is american.

this:

They had to fight hard to gain American Independence.

Explanation:
(this sentence is also true historically since americans really had to actually fight the british to gain independence for themselves)

HOWEVER, independence could also apply to other countries since america is not the only country to have ever gained independence.