Studying the Art of War

Portrait of a group of Union officers gathered in the grass outside the Fairfax County Courthouse. Three of the officers recline in the grass, as the officer on the left, Major William Ludlow, holds a copy of "The Art of War" upright in his lap. The officers, from left to right, are Major William Ludlow, Colonel Ulric Dahlgren, Lt. Colonel Joseph Dickinson, Count Ferdinand von Zeppelin, and Lieutenant Frederick Rosencranz.