A recent escalation scare between the U.S. and Europe over Greenland-related tensions has provided a surprising supportive backdrop for the euro against the dollar. The immediate threat of a new 10% U.S. tariff on imports from eight European countries was withdrawn amid signs of a potential deal, but the episode has reinforced that trade and political uncertainty has returned to markets.

Bank of America analysts describe this as a clash of opposing forces. While bilateral escalation threatens European growth, which would normally weigh on the euro, Europe’s role as a key funding source for the U.S. current account deficit means renewed stress can undermine the dollar instead. Recent price action, with EUR/USD moving higher during the scare, supported the latter channel.

Historically, the euro has tended to rise following surprise tariff escalation involving the EU. BofA estimates an average excess gain of close to 1% in the week after such events. The bank also notes a shift in market dynamics, where higher U.S. real yields no longer translate into a stronger dollar against the euro, reflecting lower shock value and expectations of eventual de-escalation.

The economic impact of the threatened tariffs would be limited unless applied across the entire EU, as the eight targeted countries account for about 11% of U.S. imports. The larger cost would come from a persistent rise in uncertainty, which could weigh on European investment if prolonged. A coordinated EU response focused on services, rather than goods, could further support the euro.