The claim that the EU is preparing a massive tariff retaliation worth over $100 billion against the US in response to President Trump's Greenland plans is true because multiple reliable sources report that the EU is considering tariffs valued around €93 billion (approximately $108 billion) as a countermeasure to Trump's threats related to Greenland.
EU prepares massive $100+ BILLION tariff strike against US over President Trump’s Greenland plans.

EXPLAINED: EU's €93 Billion Tariff Strike Against US Over Trump’s Greenland Takeover Plans - US News - Times Now
Source: timesnownews.com
Key Evidence
Reuters reports the EU considering $108 billion in retaliatory tariffs against the US.
reuters.comreuters.comEU considers $108 billion in retaliatory tariffs on US over Trump's Greenland...
The Independent and Times Now both cite €93 billion (~$107 billion) as the value of the planned tariffs.
timesnownews.comtimesnownews.comEXPLAINED: EU's €93 Billion Tariff Strike Against US Over Trump’s Greenland...
independent.co.ukindependent.co.ukTrump-Greenland latest: EU ‘prepares €93bn tariffs’ after US president’s threats...
The Guardian and Politico highlight European leaders' condemnation of Trump's threats and their commitment to a firm response.
theguardian.comtheguardian.comTrump’s tariff threat over Greenland risks ‘dangerous downward spiral’, warn...
politico.eupolitico.euEurope vows ‘firm’ response to new Trump tariffs over Greenland+1 more
What the Evidence Shows
Multiple independent and reputable news outlets confirm that the European Union is preparing a significant retaliatory tariff package against the United States, valued at roughly €93 billion or about $100+ billion. This response is directly linked to President Donald Trump's threats to impose tariffs on European NATO allies who oppose his plans concerning Greenland, including his controversial attempt to purchase or annex the territory. The EU's potential measures include imposing tariffs on U.S. Exports and possibly restricting American companies' access to the EU market. The sources consistently mention the scale of the tariff retaliation, with figures ranging from €93 billion to $108 billion, reflecting currency conversion differences but confirming the magnitude. European leaders have condemned Trump's tariff threats as unacceptable and have warned of a dangerous escalation in trade tensions. Emergency meetings and crisis talks are underway within the EU to coordinate a firm and comprehensive response. Some reports also mention the possibility of deploying a so-called 'trade bazooka,' an unprecedented commercial countermeasure designed to pressure the U.S. Economically.
Overall, there is strong consensus across multiple high-quality sources that this tariff retaliation plan is real, substantial in scale, and directly motivated by Trump's Greenland-related policies and threats.