Dibb, PaulBrabin-Smith, RichardCarr, Andrew2021-09-302021-09-302208-7303http://hdl.handle.net/1885/249089This Centre of Gravity paper is based on an ANU public lecture given by the authors on 23 June 2021. The lecture in turn drew heavily on the authors’ paper for the Australian Strategic Policy Institute, Deterrence through denial: a strategy for an era of reduced warning time, published in May 2021.1 The authors are grateful to the Australian Strategic Policy Institute for agreeing that the material could be re-published in this way.16 pages© 2021 ANU Strategic and Defence Studies Centrehttps://creativecommons.org/licenses/by/4.0/The Challenge of Warning Time in the Contemporary Strategic Environment2021-10Creative Commons Attribution 4.0 International (CC BY 4.0)