This lecture explores the emergence of the Indo-Pacific as a geopolitical concept within Indian anticolonial thought from the interwar period through the early 1940s, rather than treating the Indo-Pacific as a Cold War or post-Cold War invention. While the contemporary usages of the Indo-Pacific in South, South-East and East Asia are well-researched, its entangled and granular historical genealogy in Indian anticolonial political formulations have remained less explored beyond the obvious references to early twentieth-century Pan-Asianism and Indian entanglements in the Indian Ocean World. By following exchanges among the stakeholders and early International Relations scholars emerging from such epistemic networks centred around the domain of Pacific Affairs, this lecture reconstructs an integrated history of the Indo-Pacific as a site of geopolitical knowledge production in the first half of the twentieth century. Details and registration here