The claim is mostly true because multiple reliable sources confirm that EU lawmakers have frozen or suspended the ratification of a key US-EU trade deal and are considering retaliatory trade measures, including selling US bonds worth trillions, in response to President Trump's aggressive stance and tariff threats related to Greenland; however, there is no definitive confirmation that all US-EU defense deals have been suspended.
EU firms plans to sell $8.1 trillion worth US bonds, halt trade deals and suspend all US-EU defense deals due to Trump’s aggressive stance on Greenland.

Europe can wield this $8 trillion 'sell America' weapon as Trump reignites a trade war over his Greenland conquest ambitions - Fortune
Source: fortune.com
Key Evidence
The European Parliament has paused work on ratifying a key US-EU trade deal following Trump's tariff threats over Greenland.
lemonde.frlemonde.frEU Parliament freezes US trade deal ratification after Trump's tariff threats...
nbcnews.comnbcnews.comE.U. halts approval of U.S. trade deal after Trump's Greenland tariff threat+1 more
European officials are considering or preparing to sell up to $8 trillion in US bonds as a form of economic retaliation.
fortune.comfortune.comEurope can wield this $8 trillion 'sell America' weapon as Trump reignites a...
Discussions about imposing counter-tariffs and restricting market access to the US are ongoing amid fears of escalating trade conflict.
forbes.comforbes.comEurope May Restrict U.S. Trade Over Trump’s Greenland Threats
reuters.comreuters.comTrump's Europe tariff threat over Greenland revives talk of 'Sell America' trade
What the Evidence Shows
Multiple reputable news outlets report that the European Union has taken significant steps to respond to President Donald Trump's aggressive posture regarding Greenland, including tariff threats and demands related to its sovereignty. The European Parliament has officially frozen or suspended the ratification process of a major US-EU trade deal as a direct protest against these actions.lemonde.frlemonde.frEU Parliament freezes US trade deal ratification after Trump's tariff threats...
nbcnews.comnbcnews.comE.U. halts approval of U.S. trade deal after Trump's Greenland tariff threat+2 more
Furthermore, European officials and lawmakers are actively discussing or preparing retaliatory measures that include restricting trade with the US and potentially leveraging the massive holdings of US debt by European firms and governments, estimated at around $8 trillion, as an economic countermeasure.fortune.comfortune.comEurope can wield this $8 trillion 'sell America' weapon as Trump reignites a...
forbes.comforbes.comEurope May Restrict U.S. Trade Over Trump’s Greenland Threats Market reactions have reflected these tensions with declines in stock markets and increased trade war fears.+2 more
However, while there is clear evidence of trade deal suspension and threats of economic retaliation, explicit confirmation that all US-EU defense deals have been suspended is not found in the sources. The focus remains primarily on trade agreements and economic sanctions rather than defense cooperation. Thus, the claim about halting trade deals and selling US bonds is well-supported, but the part about suspending all defense deals lacks direct verification.