The China Coast Guard rammed a Philippine government vessel in the South China Sea on September 20, four days before Xi Jinping lands in Washington for Thursday's meeting with Donald Trump. The incident does not sit on the Ministry of Foreign Affairs ledger, or, more precisely, it sits there only for the press conference. Operationally it belongs to the China Coast Guard's own command structure, which answers through the Central Military Commission, the same body that expelled two senior generals this week and now carries just two members heading into Xi's highest-profile diplomatic trip since taking office.

That sequencing is the story Mei Chen's brief on the CMC purge does not carry: a military commission stripped to two members did not also stand down its South China Sea patrol posture. It escalated it. A thinner command tier ordering a more aggressive maritime encounter four days before a Trump summit reads less like weakness and more like a decision to hand Manila and Washington a fresh grievance before the Taiwan arms sale even reaches the table, forcing Trump's negotiators to choose which flashpoint gets airtime on September 24. The China Coast Guard's next patrol cycle, not the CMC's roster, is the thing to check against Thursday's outcome.