The document outlines the Department of Defense's strategy for operating in cyberspace. It discusses 5 strategic initiatives: 1) treating cyberspace as an operational domain; 2) employing new defense operating concepts like active cyber defense and network resilience; 3) partnering with other government agencies and the private sector; 4) building international partnerships; and 5) developing an exceptional cyber workforce through training and innovation. The strategy aims to help the DoD organize for, defend, and leverage opportunities in cyberspace while managing threats from state and non-state actors.