Iran has formally responded to a US peace proposal, according to reports, while warning that any new attacks against it would draw a strong reaction. The timing is notable: the response arrived just ahead of a US-China summit scheduled in South Korea.

What Iran Said

Tehran's message carried a dual track. It engaged with the American proposal while simultaneously signaling that Iran's deterrence posture remains intact. The warning against new attacks suggests Iran wants any diplomatic process to begin from a position of security, not vulnerability.

Why the Summit Timing Matters

The US-China meeting in South Korea adds a layer of geopolitical weight to this moment. Both Washington and Beijing have interests in Middle East stability, and Iran's response lands on the table just as the two powers sit down together. Whether Iran's move was timed deliberately to influence that conversation or coincided with it is not clear from available information.

For markets and policymakers, the key question is whether this exchange marks the start of a credible negotiating track or remains an early, fragile signal. Iran's public warning against attacks while simultaneously responding to a peace proposal is a classic dual-signal approach: show willingness to talk, but do not appear weak domestically or regionally.

The situation bears watching closely. If the US and China align on a shared position toward Iran during the South Korea summit, that could accelerate diplomatic momentum. If their approaches diverge, Iran may have room to play one side against the other, a dynamic it has used before.

What to watch: the US response to Tehran's reply, any joint statement from the South Korea summit touching on Iran, and whether other regional actors, particularly Gulf states and Israel, react publicly to the exchange.