Danish Foreign Minister Lars Lokke Rasmussen said on Monday that he would summon U.S. Ambassador to Denmark Kenneth Howery for talks following U.S. President Donald Trump's appointment of a special envoy to Greenland, reported Xinhua. On Sunday, Trump appointed Louisiana Governor Jeff Landry as the U.S. special envoy to Greenland, a move that has sparked strong diplomatic reactions in Copenhagen. "I am upset, particularly by the envoy's statements about making Greenland part of the United States. We find that completely unacceptable," Rasmussen told Danish broadcaster TV 2. Earlier in the day, Rasmussen said in a written statement to Danish broadcaster DR that while the appointment underscores continued American interest in the Arctic island, "everyone, including the U.S., must show respect for the territorial integrity of the Kingdom of Denmark." The controversy intensified after Landry, following his appointment, posted on social media platform X to thank Trump, saying it was an honor to serve in the role "to make Greenland a part of the U.S." Meanwhile, Danish Prime Minister Mette Frederiksen and Greenlandic Prime Minister Jens-Frederik Nielsen said on Monday that they expect respect for the Kingdom of Denmark's territorial integrity from the U.S. side. "We have said it very clearly before. Now we say it again. You cannot annex other countries. Not even with an argument about international security. Greenland belongs to the Greenlanders, and the USA should not take over Greenland. We expect respect for our common territorial integrity," the two leaders said in a joint statement. The remarks came after U.S. President Donald Trump announced the appointment of Louisiana Governor Jeff Landry as the U.S. special envoy to Greenland, renewing diplomatic tension between Washington and the Danish Realm. "Jeff understands how essential Greenland is to our National Security, and will strongly advance our Country's Interests for the Safety, Security, and Survival of our Allies," said Trump on social media platform "Truth Social." Landry wrote on social media X that it was an honor to serve in the role "to make Greenland part of the USA." Earlier in May, 2025, Denmark summoned the United States ambassador to Denmark for a meeting following media report suggesting that Washington plans to intensify espionage activities targeting Greenland.