Discuss the impact of guerrilla warfare on the outcome of two 20th century wars.

The question requires that candidates offer a considered and balanced review of the impact of guerrilla warfare on the outcome of two 20th century wars. The two wars may or may not be from the same region and they may or may not have been contemporaneous with each other. The use of guerrilla warfare may predate the time frame, but it must be clearly linked to the issue raised in the question. Candidates may offer equal coverage of guerrilla warfare in both wars, or they may prioritize their discussion of one war over the other. A comparative approach may or may not be used. While other relevant factors, for example, technology, the application of human or economic resources, external involvement, may be referred to, the bulk of the response will remain on the issue raised in the question.