 The exclusion of key groups such as refugees and Shias, combined with major disagreements between the different mujahideen factions, meant that the IIGA never succeeded in acting as a functional government.Before the war, Afghanistan was already one of the world's poorest nations.The prolonged conflict left Afghanistan ranked 170 out of 174 in the UNDP's "Human Development Index", making Afghanistan one of the least developed countries in the world.