France called a framework trade deal between the United States and European Union a “dark day” for Europe, saying the bloc had caved in to U.S. President Donald Trump with an unbalanced deal that slaps a headline 15 per cent tariff on EU goods while sparing U.S. imports from any immediate European retaliation.
The answer is: Military
At the moment Europe is very much dependent on the US if there is really a bigger conflict on the horizon, and i bet Trump did not hesitate to play this card.