"Gettysburg Ranger and historian Troy Harman reframes the story of the Battle of Gettysburg from the historical view that it was an "accidental" battle to show that it was instead a logical and strategic clash, based on his years of researching the Civil War and studying the terrain of Gettysburg, south-central Pennsylvania, and northern Maryland"-- Provided by publisher.

Unique challenges in doing Gettysburg battle history --Symbolic polarities, water courses, improved roads, rail links, and passes -- Day one — Union battlefront on Monocacy river headwaters -- Day two, morning — Union offensive plans to secure the Rock Creek line -- Day two, afternoon — Union offensive plans shift to left of Rock Creek line -- Day three — focus shifts to center of Rock Creek line -- Day four and five — full restoration of the Rock Creek line.