Danish Prime Minister Mette Frederiksen expressed sharp criticism toward the United States following a Wall Street Journal report alleging that Washington ramped up intelligence activities in Greenland, a territory under Danish sovereignty. Speaking to the Associated Press on Friday, Frederiksen said, "You cannot spy against an ally," dismissing the report as "rumors" but underscoring the rising importance of defense collaboration in northern Europe.

The report claimed that US intelligence officials had instructed their teams to collect information on pro-independence groups in Greenland using surveillance methods and human intelligence sources. The allegations have sparked concerns about trust and transparency between Denmark and the United States, two longstanding NATO allies.

Earlier in the day, US Director of National Intelligence Tulsi Gabbard condemned the leak of the classified information, accusing the Wall Street Journal of aiding "deep state actors" allegedly attempting to undermine President Donald Trump’s administration. Gabbard warned that those responsible for the leak would face serious consequences, emphasizing the government's commitment to safeguarding sensitive national security matters.

The controversy comes at a time when northern Europe is seeing heightened strategic focus, with Arctic security and geopolitical interests gaining momentum. Frederiksen’s remarks reflect Denmark’s insistence on maintaining mutual respect and trust within allied relationships, particularly regarding sovereignty and intelligence operations.

Analysts are closely monitoring the fallout, as both sides weigh the implications for future defense cooperation and broader diplomatic ties. The incident underscores the delicate balance between national security imperatives and the principles that bind allied nations together.