Spies is the history of the secret war that Russia and the West have been waging for a century. Espionage, sabotage, and subversion were the Kremlin’s means to equalize the imbalance of resources between the East and West before, during, and after the Cold War. There was nothing “unprecedented” about Russian meddling in the 2016 US presidential election. It was simply business as usual, new means used for old ends.

Two leading authorities—an acclaimed historian and the outstanding battlefield commander and strategist of our time—collaborate on a landmark examination of war since 1945. Conflict is both a sweeping history of the evolution of warfare up to Putin’s invasion of the Ukraine, and a penetrating analysis of what we must learn from the past—and anticipate in the future—in order to navigate an increasingly perilous world.

The relationship between the US and China, the world’s two superpowers, is peculiarly volatile. Their militaries play a dangerous game of chicken, corporations steal intellectual property, intelligence satellites peer, and AI technicians plot. The capacity for either country to cross a fatal line grows daily. Kevin Rudd, a former Australian prime minister who has studied, lived in, and worked with China for more than forty years, is one of the very few people who can offer real insight into the mindsets of the leadership whose judgment will determine if a war will be fought.

Over the last decade, a single innovation has massively fueled digital black markets: cryptocurrency. Crime lords inhabiting lawless corners of the internet have operated more freely—whether in drug dealing, money laundering, or human trafficking—than their analog counterparts could have ever dreamed of. By transacting not in dollars or pounds but in currencies with anonymous ledgers, overseen by no government, beholden to no bankers, these black marketeers have sought to rob law enforcement of their chief method of cracking down on illicit finance: following the money.

With the end of the Cold War, the victory of liberal democracy was thought to be absolute. Observers declared the end of history, confident in a peaceful, globalized future. But we now know this to be premature. Authoritarianism first returned in Russia, as Putin developed a political system dedicated solely to the consolidation and exercise of power. In the last six years, it has creeped from east to west as nationalism inflames Europe, abetted by Russian propaganda and cyberwarfare.