Iran's foreign minister said a lack of trust is the primary obstacle stalling negotiations to end the war with the U.S.

This diplomatic friction comes at a critical juncture as both nations weigh the possibility of military escalation against the potential for a negotiated ceasefire. The stalemate threatens to prolong the conflict while internal instability and foreign military threats continue to pressure both administrations.

Speaking on Friday, May 15, 2026 [1], the foreign minister said that the trust deficit is the biggest obstacle in negotiations to end the war with the U.S. The comments were reported from New Delhi [2]. Despite these tensions, some reports indicated that talks were still expected to take place on Thursday, May 16, 2026 [3].

Tehran has indicated a willingness to involve third-party mediators to bridge the gap. The foreign minister said Tehran would be open to diplomatic help, particularly from China, to overcome this trust deficit [1]. China has previously played a role in regional diplomacy, and Iran appears to view Beijing as a viable partner to facilitate a breakthrough.

Several factors are compounding the difficulty of these negotiations. Domestic protests within Iran have created internal volatility, while the threat of U.S. military action remains a constant variable in the diplomatic equation [4]. These pressures have made it difficult for either side to offer concessions without appearing weak to their respective domestic audiences.

While the U.S. has continued to signal that talks should proceed, the Iranian leadership maintains that the underlying lack of trust makes a sustainable agreement difficult to reach. The discrepancy between the expectation of the May 16 meeting [3] and the foreign minister's warning about stalled progress highlights the fragility of the current diplomatic track [5].

“Lack of trust is the biggest obstacle in negotiations to end the war with the United States.”

The request for Chinese mediation suggests that Iran no longer believes direct bilateral negotiations with the U.S. can produce a viable peace agreement. By pivoting toward Beijing, Tehran is attempting to leverage a global superpower that maintains functional relationships with both parties to provide a security guarantee that the U.S. alone cannot or will not provide.