Emmanuel Macron has repeatedly used the term 'economy of war' since 2022, sparking discussions among economists and thinkers. While France is not at war, some propose the concept of an 'ecology of war' as a metaphor to generate consensus and urgency. Recommendations for implementing an 'economy of war' include public procurement, supply chain control, and private financing. Historically, war and the economy have been intertwined, with kings of France creating permanent taxes to fund their armies. Economists have sought to measure and demonstrate the negative effects of war to emphasize the benefits of peace. They have also examined the economic causes of wars to prevent them. The debate continues on how to balance military and non-military spending in the economy and the long-term sustainability of increased defense expenditures. [7d69ade5]