They are in everything from computers to smartphones, from toasters to washing machines: Microprocessors are essential for so many consumer goods to function and now arguably underpin the world economy more than oil.

When the pandemic hit it highlighted how much Western countries rely on the chip industry. Today Europe, America and China are involved in an intense commercial struggle to dominate this sector that is so strategic for the future. From Taiwan to Shanghai, via Brussels and San Francisco, investigative journalist Nicolas Vescovacci went to meet the most influential players in this microchip war, which is redefining world geopolitics.