In the days before a high-stakes summit with the United States, China welcomed a senior Iranian diplomat to Beijing — a gesture as deliberate as it was symbolic. The meeting spoke to something older than any single negotiation: the enduring human contest over who holds influence, who brokers peace, and whose relationships define the terms of global order. Beijing was not merely hosting a visitor; it was announcing, quietly but unmistakably, that its reach into the Middle East is a card it intends to play.