The Defense Department will "defend forward" in daily competition with Russia and China in cyberspace, according to a new cyber strategy that defines a more prominent role for the U.S. military in protecting critical infrastructure and the defense industrial base. The strategy, updated for the first time since 2015, presents a world in which U.S. competitors hesitant to engage in armed conflict "are using cyberspace operations to steal our technology, disrupt our government and commerce, challenge our democratic processes, and...