2022 https://www.researchgate.net/profile/Elizabeth-Boulton-3/publication/360219123_PLAN_E_Grand_Strategy_for_the_Twenty-First-Century_Era_of_Entangled_Security_and_Hyperthreats/links/6269ed5405d79a3968a75eb8/PLAN-E-Grand-Strategy-for-the-Twenty-First-Century-Era-of-Entangled-Security-and-Hyperthreats.pdf Low