Read the two paragraphs from the article.
During the 1990s, the western region of Darfur experienced increasingly violent internal disputes
over access to land and power. The Sudanese govemment responded by rewarding and arming
local militias, known as Janjaweed, who shared its beliefs. Fighting began in Darfur when
members of the Fur, Zaghawa and Masalit ethnic groups created the Sudan Liberation Army
(SLA) and attacked a government airfield on April 25, 2003. Another rebel group, the Justice and
Equality Movement (JEM), joined the fight against the Sudanese govemment forces.
How do these paragraphs contribute to the effectiveness of the author's narrative?