Uncle would want me to keep going so I cant give up now,I must keep going.
I will lead these lost boys to the refugee camp in Kenya.
Salva is is confused and upset because his group left him behind during a war and he doesn't know what to do and where to go, and he doesnt have an adult to take care of him.
Uncle was killed by Neur men and now that he is gone the group doesnt help or share anything with Salva so now Salva is empowered to keep going and not give up because that is what he thinks his uncle would want him to.
Salva goes to being flustered and confused in chapter 3 to terrible sadness to being strengthened by his uncles world to keep going and to not give up in chapter 11, to finally being scared to cross the Gilo River which is full of crocodiles and then to be a leader of a group of 1,200 boys and taking them to the refugee camp in Kenya in chapter 13.