Will mark brainliest! what is the guerrilla warfare? how did it the colonist

Guerrilla Warfare is a type of irregular warfare wherein small groups of soldiers use irregular means of attack to take on a larger enemy.

The Colonists, lacking true Professional soldiers, used guerrilla warfare to take on the professional British Army who was only trained in fighting using traditional means (one army marching against another army).

This meant that the Colonists could inflict great casualties without having to face the great British Army face-to-face.

d. promised it other land

i think it was   tsar alexander ii