International donors gathering at the United Nations this week can best help Liberia by pledging funds to rehabilitate its tens of thousands of child soldiers, Human Rights Watch said in a new report released on Monday. The 43-page report, “How to Fight, How to Kill: Child Soldiers in Liberia,” documents how more than 15,000 child soldiers fought on all sides of the Liberian civil war, and that many units were composed primarily of children. The report argues that establishing a firm peace in the West African nation will depend on the successful reintegration of child soldiers into civil society.