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.

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.

CNN’s chief national security correspondent reveals the invisible fronts of 21st-century warfare and identifies the ongoing battles being waged - often without the public’s full knowledge - from disinformation campaigns to advanced satellite weaponry.

The Sino-American contest is driven by clashing geopolitical interests and a stark ideological dispute over whether authoritarianism or democracy will dominate the twenty-first century. But both history and China's current trajectory suggest that this rivalry will reach its moment of maximum danger in the 2020s. The Chinese challenge will most likely prove more manageable than many pessimists currently believe—but during the 2020s, the pace of Sino-American conflict will accelerate, and the prospect of war will be frighteningly real.