The gloves are off. Trump’s tariff threats over Greenland sent the FTSE 100 and Wall Street tumbling on Tuesday as European leaders scrambled to respond without triggering a full-blown trade war. With the President doubling down on 10% levies against eight European nations including the UK, markets are ditching the old “TACO trade” playbook. Turns out, Trump 2026 isn’t chickening out. Here’s what’s happening and why your portfolio might be feeling the heat.
The Greenland Row That’s Rattling Markets
It started with Greenland. The US President slapped 10% tariffs on the UK, Denmark, Norway, Sweden, France, the Netherlands, Finland, and Germany for defending Greenland’s sovereignty. His message? Back off, or pay up.
European Commission President Ursula von der Leyen wasn’t having it. She called the tariffs a “mistake” and promised Europe’s response would be “unflinching, united and proportional.” Her line—”when friends shake hands, it must mean something”—was a diplomatic jab wrapped in politeness.
Meanwhile, US Treasury Secretary Scott Bessent is telling everyone to chill. Speaking at Davos, he mocked European leaders for threatening to form a “dreaded working group” and compared the panic to April’s Liberation Day tariff offensive.
“Take a deep breath and let things play out,” Bessent said. Translation: We’ve seen this movie before.
But here’s the twist—markets aren’t buying the calm-down pitch this time.

FTSE 100 and Wall Street Take a Beating
By the time US markets opened on Tuesday, the damage was clear. The FTSE 100 was down 1%, whilst the Dow Jones shed 1.2% at the opening bell, the S&P 500 dropped 1.4%, and the tech-heavy Nasdaq fell 1.8%. Monday’s losses deepened after Trump confirmed he’ll “100%” follow through on the tariffs if Europe doesn’t budge on Greenland.
Remember TACO? Trump Always Chickens Out was the acronym traders loved in 2025 when markets bounced back after tariff scares. Not anymore.
“The Trump of 2026 seems to act more decisively—take the military action in Venezuela as evidence,” said Emma Wall, chief investment strategist at Hargreaves Lansdown. “Investors playing volatility need to recalibrate.”
Wall’s expecting more “market turmoil” when Trump takes the Davos stage tomorrow.
Europe’s Diplomatic Tightrope Walk
European leaders are stuck between a rock and a hard place. Defend Greenland’s sovereignty, or risk economic fallout? It’s not an easy choice.
Trump claims he had a “good” call with NATO Secretary General Mark Rutte, whilst European leaders prepare to huddle in Davos to plot their next move. French President Emmanuel Macron reportedly sent Trump a private message saying, “I do not understand what you are doing on Greenland.”
UK Prime Minister Keir Starmer is sticking to his “calm” diplomatic approach despite Trump’s fury. He’s rejected suggestions of imminent US military action and is banking on easing tensions over the coming days.
Mike Johnson, speaker of the US House of Representatives, also downplayed indications that Trump was prepared to invade—though Trump’s unpredictability makes any prediction risky.
Trump’s claiming China and Russia want Greenland for national security reasons, yet he’s invited Vladimir Putin and Xi Jinping to join his Gaza ‘Board of Peace.’ The contradiction isn’t lost on European diplomats trying to navigate this chaos.

What Happens Next?
Trump’s Davos appearance tomorrow could swing markets further. If he softens his stance, we might see a relief rally. If he doubles down? Brace for more red.
European leaders are racing to find a response that protects sovereignty without tanking their economies. The tariffs are real, the threats are credible, and the “Trump always backs down” narrative is dead.
For investors, the message is clear: volatility is back, and this trade war has teeth. Don’t expect this to blow over quickly. Keep an eye on Davos, watch the tariff timeline, and prepare for choppiness ahead.
Stay updated on the latest market movements and tariff developments as this story unfolds.
FAQ
Q1: Will Trump actually impose the 10% tariffs on European nations?
A: Based on his recent track record, including military action in Venezuela, Trump appears more willing to follow through in 2026. He’s publicly stated he’ll “100%” implement the tariffs if Europe doesn’t back down on Greenland. The threat should be taken seriously.
Q2: What is the TACO trade, and why isn’t it working anymore?
A: TACO (Trump Always Chickens Out) was a trading strategy where investors bet on Trump backing down from tariff threats, causing markets to rebound. It worked in 2025, but Trump’s more decisive approach in 2026 has made this strategy riskier.
Q3: How are European leaders responding to the Greenland tariff threats?
A: European leaders are walking a diplomatic tightrope, trying to defend Greenland’s sovereignty without triggering a full trade war. Ursula von der Leyen promised a “proportional” response, whilst leaders plan to meet in Davos to coordinate their strategy.
Q4: Why does Trump care so much about Greenland?
A: Trump claims China and Russia want Greenland for strategic national security reasons, positioning US interest as defensive. However, his simultaneous invitation to Putin and Xi Jinping for his Gaza ‘Board of Peace’ has raised questions about this argument’s consistency.
Q5: Should UK investors be worried about their portfolios?
A: Short-term volatility is almost certain, especially with Trump’s Davos speech tomorrow. The FTSE 100 has already dropped 1%, and further uncertainty could drive more selling. Long-term investors should monitor developments closely but avoid panic-selling.
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Effective Date: 15th July 2025
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