The Road to Armageddon: The Assyrian Empire in the Seventh Century BC offers a new interpretation of how the first Mesopotamian empire ended. Rather than narrating sudden collapse or gradual decline, it analyses the structural transformation that occurred when imperial coordination thinned while administrative systems continued to function. Focusing on the seventh century BC, the book traces how the Assyrian Empire intensified governance, infrastructure, and imperial ideology at the height of its power. Monumental building at Nineveh, theological centralisation at Assur, covenantal politics, and large-scale infrastructural investment produced unprecedented levels of imperial saturation and optimisation. Drawing on royal inscriptions, palace reliefs, archival records, and environmental data, the study integrates political history with climate history and systems analysis. It examines the interaction of aridity, geomagnetic instability, seismic volatility, and biological innovation with imperial structures across Mesopotamia and the ancient Middle East. The fall of Nineveh in 612 BC is interpreted not as a sudden rupture but as the culmination of a longer process of structural decoupling. The book proposes Armageddon as a historical category describing the condition in which durability outlasts adaptability, offering a model for understanding how complex empires reach irreversible thresholds.