<span>Nationalism in the Balkans and a system of military alliances is the best selection for the major cause of World War One. </span>
Answer:
John Lincoln Clem, is known as Johnny Shiloh, which is a United States Army general who served as a drummer boy in the Union Army in the American Civil War. He got his fame for his bravery on the battlefield, becoming the youngest noncommissioned officer in Army history.
Explanation:
