Denmark will buy two P-8A Poseidon maritime patrol aircraft from Boeing NYSE:BA, the country's defence ministry said on Tuesday.
Denmark said last September it was considering acquiring submarine-hunting maritime patrol aircraft to strengthen surveillance around the Faroe Islands and Greenland.
"With maritime patrol aircraft, Denmark's ability to enforce sovereignty and monitor the region is significantly strengthened," Defence Minister Jeppe Bruus said in a statement, adding the aircraft would help Denmark meet NATO capability targets in anti-submarine warfare.
The government gave no figures on the value of the deal.
U.S. President Donald Trump has repeatedly called for U.S. control of Greenland, a semi-autonomous Danish territory, citing national security concerns related to Russia and China. His administration has also accused Denmark of not doing enough to safeguard Greenland and the wider Arctic region.