The snowball phenomenon: the US Marine Corps, military mythology and the spread of hybrid warfare theory Russian hybrid warfare: resurgence and politicisation, by Ofer Fridman. London, Hurst and Co, 2018,ix

This article reviews the book by Ofer Fridman and seeks to situate the strategic debate on hybrid war in the context of debate on the US involvement in Iraq. It points to intellectuals from the Marine Corps having a significant role in the initial development of the hybrid warfare concept at a time of some reservation in US military circles over COIN strategy as this was set out in the field manual FM3-24. Thereafter, the hybrid war concept rapidly spread and became a conceptual device used to explain Russian strategic intentions in the aftermath of the invasion of Ukraine in 2014.