Paul Rogers is professor in the department of peace studies at Bradford University, northern England. He is openDemocracy's international security adviser, and has been writing a weekly column on global security since 28 September 2001; he also writes a monthly briefing for the Oxford Research Group. His latest book is 'Irregular War: ISIS and the New Threat from the Margins' (IB Tauris, 2016), which follows 'Why We’re Losing the War on Terror' (Polity, 2007), and 'Losing Control: Global Security in the 21st Century' (Pluto Press, 3rd edition, 2010). He is on Twitter at: @ProfPRogers

A lecture by Paul Rogers, delivered to the Food Systems Academy in late 2014, provides an overview of the analysis that underpins his openDemocracy column. The lecture - 'The crucial century, 1945-2045: transforming food systems in a global context' - focuses on the central place of food systems in human security worldwide. Paul argues that food is the pivot of humanity's next great transition. It can be accessed here