What is the main conflict in Guerrilla Warfare by Ernesto Guevara?

Guerilla Warfare is a manual written by Ernesto "Che" Guevara to instruct the reader in the proper method to wage a guerilla war against a non-communist regime. Che discusses all of the main aspects of guerilla warfare in this text and tries to take his experience in Cuba and then to generalize from that experience to gather general principles that he can impart to the would-be revolutionary.