Yvonni-Stefania Efstathiou

Yvonni-Stefania Efstathiou

Programme Coordinator and Research Analyst for Defence and Military Analysis Programme


  • Defence and military analysis

Languages: Greek, English, French, Spanish and Russian (elementary)

Summary: Yvonni is the Programme Coordinator and Research Analyst for Defence and Military Analysis at IISS. She supports the organisation and execution of the department’s internal and external activities, and liaises with international partners and contributors to gather defence data. Yvonni contributes to the collection and validation of defence and military data for The Military Balance and the Military Balance+ database. She also writes for the Military Balance Blog.

Experience: Prior to joining the Institute, Yvonni worked at the Greek Embassy in London and the Centre for European Constitutional Law in Athens. She is a graduate of University College London, where she pursued an MSc in Security Studies.

About the Defence and Military Analysis Programme:

The IISS Defence and Military Analysis Programme (DMAP) analyses global defence and security affairs. Focus areas include national military and security policies and capabilities; reform and modernisation of armed forces; impact of new technologies; defence spending and procurement; the effects of austerity and rising spending on defence policy and acquisition; trends in equipment design and utility; and the defence-industrial base.

Joined IISS: July 2016

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