India, June 28 -- Iran has delivered one of its most pointed indictments yet of American diplomatic reliability, with senior officials declaring that breaking promises is not merely a policy choice by Washington; it is embedded in the very character of the United States as a negotiating partner.

The accusation, levelled as both countries attempt to hammer out a permanent end to the 2026 war, goes to the heart of why the most consequential diplomatic process of this decade remains mired in mutual suspicion, missed deadlines, and contradictory messages.

Iranian Foreign Minister Abbas Araghchi, speaking to reporters on the sidelines of a BRICS ministers' meeting in New Delhi, put it with clinical bluntness: "Currently, trust is the most im...