What is the main problem in Sophia's War

The main problem is  Deciding to stop the treason—and motivated by personal revenge—Sophia becomes desperate. However, as Sophia learns, desperation's other name is deception. Indeed, the desperate characters in this thrilling tale of spies and counter-spies, act out many acts of deception, not least by Sophia herself.

Explanation:

because I read this story like a week ago

these civilizations were located around fertile rivers, where they could produce an abundance of crops

the most famous of all the units fighting in cuba, the "rough riders" was the name given to the first u.s. volunteer cavalry under the leadership of theodore roosevelt. roosevelt resigned his position as assistant secretary of the navy in may 1898 to join the volunteer cavalry. the original plan for this unit called for filling it with men from the indian territory, new mexico, arizona, and oklahoma. however, once roosevelt joined the group, it quickly became the place for a mix of troops ranging from ivy league athletes to glee-club singers to texas rangers and indians.