Icelanders voted Saturday on whether to reopen negotiations for European Union membership, a decision with a new security dimension added by President Donald Trump's persistent interest in acquiring neighboring Greenland.

Iceland, a NATO ally strategically positioned in the North Atlantic approximately 180 miles from Greenland, lacks its own military and relies on NATO and a defense agreement with the United States for security. Trump's overtures toward Greenland, a self-governing Danish territory, have unsettled some Icelanders and prompted consideration of whether closer ties with the EU could offer an additional layer of security for the island nation.

Roughly 275,000 eligible voters were asked to consider resuming membership negotiations with the EU. The referendum is technically nonbinding, but Prime Minister Kristrún Frostadóttir's government has pledged to respect the outcome. "This has been a tight race, extremely exciting," Frostadóttir stated after casting her ballot, adding that the campaign had elevated discussions about the EU, Iceland's global standing, and its geopolitical situation.

While domestic and economic factors have been central to the referendum campaign, Trump's ambitions for Greenland have influenced the broader geopolitical context of Iceland's debate. Trump has repeatedly voiced his desire to acquire Greenland, stating the U.S. would obtain the strategically important Arctic island "one way or the other." The Trump administration previously explored options for acquisition, including the potential use of military force, a prospect that would challenge the NATO alliance and its collective-defense commitments if directed at Danish territory.

Trump has also, on multiple occasions, mistakenly referred to Iceland when discussing Greenland. The U.S. ambassador to Iceland, former Rep. Billy Long, previously apologized for a private remark to lawmakers suggesting Iceland could become the "52nd state" with him as its governor.