In 2014, the world witnessed the start of a mysterious series of cyberattacks. Targeting American utility companies, NATO, and electric grids in Eastern Europe, the strikes grew ever more brazen. They culminated in the summer of 2017, when the malware known as NotPetya was unleashed, penetrating, disrupting, and paralyzing some of the world's largest businesses—from drug manufacturers to software developers to shipping companies. At the attack's epicenter in Ukraine, ATMs froze. The railway and postal systems shut down. Hospitals went dark.

The virus now known as Stuxnet was unlike any other piece of malware built before: Rather than simply hijacking targeted computers or stealing information from them, it proved that a piece of code could escape the digital realm and wreak actual, physical destruction—in this case, on an Iranian nuclear facility.

Defense expert Seth Jones argues that the US is woefully unprepared for the future of global competition. While America has focused on building fighter jets, missiles, and conventional warfighting capabilities, its three principal rivals - Russia, Iran, and China - have increasingly adopted irregular warfare: cyber attacks, the use of proxy forces, propaganda, espionage, and disinformation to undermine American power. Jones details the key steps the United States must take to alter how it thinks about - and engages in - competition before it is too late.

It was 2004, and Sean McFate had a mission in Burundi: to keep the president alive and prevent the country from spiraling into genocide without anyone knowing that the United States was involved. The United States was, of course, involved, but only through McFate's employer, the military contractor DynCorp International. Throughout the world similar scenarios are playing out daily. The United States can no longer go to war without contractors.

Zero day: a software bug that allows a hacker to break into your devices and move around undetected. One of the most coveted tools in a spy's arsenal, a zero day has the power to silently spy on your iPhone, dismantle the safety controls at a chemical plant, alter an election and shut down the electric grid (just ask Ukraine). For decades, under cover of classification levels and non-disclosure agreements, the United States government became the world’s dominant hoarder of zero days.