While Donald Trump sets foot in Beijing for a visit presented as "historic", another battle is being fought far from the cameras: that of global industrial control. In Brussels, the meeting between the American president and Xi Jinping fuels growing concern. Behind the diplomatic smiles, Europe fears an agreement capable of reshuffling the cards of trade, technologies, and critical materials. Rare earths, supply chains, economic warfare: the Sino-American summit could accelerate Europe's industrial decline.