Ghandi's reference to historical battles in his writings is an example of allusion perspective point of view imperialism

Allusion

Explanation:

A brief (without going into details) reference to a well-known event, place, or person of historical, religious, political, or cultural importance is called allusion. This is usually done to reach at some conclusion, to make a point, claim, or to say more in few words. For example, he is the Hamlet of our class, That park is like Garden of Eden.

Perspective and point of view are similar concepts. It is lens through which a reader or a writer analyzes an event, character or situation etc.

Imperialism means the policy of ruling over a(usually another) country by use of force, or by political/economic power.