NEW: Denmark Prime Minister Mette Frederiksen panics following President Trump's declaration that the United States "needs" Greenland after the attack on Venezuela. Frederiksen begged the United States to "cease its threats." "I must say this very clearly to the United States," she began. "It makes absolutely no sense to speak of any necessity for the United States to take over Greenland." "The United States has no legal basis to annex one of the three countries of the Kingdom of Denmark. The Kingdom of Denmark — and thus Greenland — is a member of NATO and is therefore covered by the Alliance’s collective security guarantee." "We already have a defence agreement between the Kingdom of Denmark and the United States that grants the U.S. broad access to Greenland. In addition, the Kingdom has made significant investments in security in the Arctic." "I therefore strongly urge the United States to cease its threats against a historically close ally, and against another country and another people who have stated very clearly that they are not for sale."