Is the Extraterrestrial Alliance working to trigger a war between the U.S. and China, with Iran, or both?

Both are possibilities and you are not done with North Korea yet either. There is a three-way race underway to keep going with many plans to increase tensions, disaffections, points of disagreement that can be a flashpoint to get hostilities going. There are many scenarios, including false flag operations, to be blamed on a foreign government but truly done by the Extraterrestrial Alliance as through the Mercenary Army Program. So there can be many things happening to create misunderstandings and misinterpretations that can be sold to the voters as an insult or grave danger that must be met with military force. This happens again and again. It is the whole rationale for the so-called War on Terror which was ginned up by the Extraterrestrial Alliance as was true for all of the military misadventures through the Middle East over the last two decades. They see a widescale war with the current superpowers as a grand softening up gesture to further demoralize and deplete humanity as well as a further culling of the herd, so to speak, and will work in earnest to bring this into reality unless humans are smart enough to turn to the divine for help. It can be prevented but only through divine intervention. Human governments are under the control of the Extraterrestrial Alliance. That is the sad reality you face. There cannot be political solutions here—it is far too late.