Bierce briefly attended the Kentucky Military Institute until it burned down. At the start of the American Civil War, he enlisted in the Union Army's 9th Indiana Infantry. He participated in the operations in Western Virginia (1861), was present at the Battle of Philippi (the first organized land action of the war) and received newspaper attention for his daring rescue, under fire, of a gravely wounded comrade at the Battle of Rich Mountain. Bierce fought at the Battle of Shiloh (April 1862), a terrifying experience that became a source for several short stories and the memoir "What I Saw of Shiloh".