Dr Gilder is regularly consulted internationally on human security, resilience, and NATO's Cross-Cutting Topics, such as the protection of civilians (primarily in the CIMIC context), peacekeeping, and related topics.
As a leading expert on human security in military operations, he has worked as a Consultant/Contractor at NATO HQ Supreme Allied Commander Transformation and NATO HQ Allied Rapid Reaction Corps, is a member of NATO's Research Task Group on Human Security and Military Operations and has acted as a Subject Matter Expert for Navy Command Headquarters, Royal Navy. He has engaged with a wide variety of NATO and UK defence organisations to provide input on the development of human security doctrine and policy.
He has also been part of a Critical Group on UK Defence invited by the Ministry of Defence to contribute to shaping the next Defence Command Paper, provided input on human security to the Strategic Defence Review 2025, provided expert advice on stabilization to FCDO-funded research services, and given evidence to the Parliamentary Joint Committee on Foreign Affairs on UK involvement in peacekeeping.
He has interest in Professional Military Education working as part of the Partnership for Peace Consortium’s Human Security in Operations Working Group to prepare a handbook and reference curriculum on human security for intermediate officers, supporting the NATO/UN Approaches to Protection of Civilians course led by the Finnish Defence Forces' International Centre (the NATO Department Head for Integrated Security), and has taught British Army and Royal Navy officers and Senior Ratings. He is able to advise on training needs analyses, development of learning activities and support delivery of PME. At the University of Reading he convenes a module on the University’s Army Higher Education Pathway (the BA/MA programme for British Army cadets and junior officers delivered in partnership with the Royal Military Academy Sandhurst).
Beyond the UK he is on the European Parliament's List of Experts for Policy Area 11 Foreign Affairs, Security and Defence, has been engaged as an Expert by the European Commission, taken part in expert-level workshops, committees, and reviewed publications for think tanks, such as the Royal United Services Institute (RUSI), International Peace Institute (IPI) (USA) and the Stockholm International Peace Research Institute (SIPRI) (Sweden), advised on research capacity-building for research institutes in India and Somaliland, and has co-authored policy research for the Public Interest Litigation Project of the Nederlands Juristen Comité voor de Mensenrechten (Netherlands).