• US warns countries to choose between US-led AI coalition and China's program.
• Pax Silica initiative aims to secure AI model and semiconductor supply chains.
• Around two dozen countries have joined Pax Silica, including Japan and Australia.
• US hopes to deprive China of resources in the AI race.

This move may indicate the US is intensifying its efforts to counter China's technological advancements, which could have significant implications for global AI development and supply chains. The US strategy suggests a focus on securing exclusive partnerships, which may lead to a more fragmented AI landscape.