This article is part of the The DC Brief, TIME’s politics newsletter. Sign up here to get stories like this sent to your inbox every weekday. Four years after Russian agents launched a sweeping, multifaceted operation targeting the 2016 presidential elections through a hacking and disinformation campaign, the Pentagon is pressing ahead with a cyber strategy to ensure the nation is better defended this time around. General Paul Nakasone, who is both the military’s top commander for cyber-operations as head of U.S.