Foreign ministers from the US, India, Japan and Australia — the four nations that make up the Quadrilateral Security Dialogue, better known as the Quad — are set to meet in New Delhi over three days from Sunday to discuss Indo-Pacific security, energy supplies and emerging technologies.

The meeting comes as China continues to test geopolitical and security boundaries in the region.

But it's another issue, which is not on the agenda, that looms large over the gathering: how to keep the alliance alive and relevant in an ever more challenging geopolitical landscape and an increasingly assertive China.Trump's tariffs, peace claims stir tensions with Modi

The Quad, which unites the four nations in seeking a Free and Open Indo-Pacific (FOIP), has not had a meeting of national leaders since 2024, when then-President Joe Biden hosted his counterparts in Wilmington, Delaware.

India was meant to host the next annual meeting in the latter part of 2025, but that never materialized amid tensions between India and the new administration of President Donald Trump.