In a free trade zone like the EU, there are no import tariffs between member states
This imported product is subject to a 25% import tariff
Tariffs on imports are a tax that is ultimately paid by the consumers of the country that imposes them, as businesses often pass the cost onto them through higher prices
After World War II, the United States strongly advocated for free trade (i.e. reduction/elimination of import tariffs) as part of a broader effort to rebuild the global economy