In an age when faith is too often entangled with politics, Kingdom or Empire? asks a piercing question: Whose kingdom are we serving? Nationalism and populism promise security, belonging, and power, but at the cost of distorting the gospel. Too often, the cross is wrapped in a flag, and allegiance to Christ is replaced with loyalty to empire. In this timely and prophetic book, Graham Joseph Hill calls readers back to the radical, countercultural way of Jesus. Drawing on Scripture, history, and global case studies, Hill exposes the dangers of Christian nationalism while offering a compelling vision of the kingdom of God: a kingdom marked by justice, humility, reconciliation, and love. Each chapter moves from theology to practice, equipping individuals and communities to resist political idolatry and embody Christ’s alternative way in the world. Kingdom or Empire? is a call to courageous discipleship. It invites Christians to disentangle faith from partisan agendas and to rediscover the dangerous, beautiful hope of following Jesus in a world that confuses power with truth.