China asks Iran to rein in Houthis; why Beijing has stepped in now

China has asked Iran to influence Yemen's Houthis to de-escalate regional tensions. This appeal follows Saudi Arabia's request for Beijing's assistance with Houthi advances. China depends on secure energy routes and seeks to prevent wider conflict spread. Iran responded that regional stability requires ending the US-Israeli war. Beijing's leverage faces a test as it seeks to secure vital shipping lanes.