If I understood your question correctly, then the answer is "it depends". Sometimes, individuals have a large impact on starting a war (think World War I where one individual caused the war to start), other times groups of people have also important roles in starting a war (think World War II).
Can have difficulty finding work.
Depresión
Acoso
consumo de alcohol
The correct answer is the founding values and principles of the country
America is founded on a strong democratic and idealistic standing. America also has a rich history from which it borrows. This includes the calamity of the Civil War and the lessons learned