The volume offers a detailed narrative of a concentrated year of campaigning in the Iberian Peninsula, recounting sieges, pitched engagements, and extended maneuvers while examining how operational choices, communication, and local irregular warfare shaped outcomes. It interleaves topographical analysis of key battlefields, contemporary dispatches and decoded cipher material, and commentary on the decisions and coordination among opposing commanders. Drawn from archival documents, campaign diaries, and on-the-ground study, the text balances tactical description with strategic context and includes maps, illustrations, and specialized appendices.