The U.S. has — by far — the world’s largest defense budget, spending $948 billion last year. Its armed forces have 1.3 million personnel — some of them currently stationed in Greenland. Denmark, for its part, last year spent $9.9 billion, has only 17,000 soldiers, and most of its heavy land-warfare equipment has been donated to Ukraine.
Sweden, Norway, and Finland did something similar with their own Sami populations, but yes it is more common knowledge in europe, that greenland isnt "like iceland".