Mr Barrot also signalled that France would be ready to send troops to Greenland if requested by Denmark to defend it against a bid by Trump to seize it militarily, but doubted this would happen.
Basically the US imports a 100 billion € per year more than it exports in goods to the EU. And the EU mostly just imports oil and gas (and some pharmacyticals) from the US, which are relatively easy to substitute, while the reverse is mostly high-tech equipment hard to substitute.
However, despite this appearing like the US needs the EU more then the reverse, these tariffs can still bite as economically speaking the EU of course wants to export more than it imports as this is a wealth transfer from the US to the EU and tariffs make that harder.