As governments across Europe and beyond commit to significantly higher defence spending, a critical question is coming into focus: how can these ambitions be financed sustainably?

In the final instalment of the ‘Hard power’ series on defence, Mark Sobel, vice chair at OMFIF, is joined by Andrea Presbitero, economist at the International Monetary Fund. They discuss what rising military expenditure means for public finances and economic growth as well as the trade-offs facing governments – from advanced and emerging markets – already grappling with constrained budgets.