Denmark’s government has proposed purchasing two new Arctic inspection vessels and increasing dog sled patrols to boost its military presence in Greenland, as US President-elect Donald Trump sets his sights on the island, Report informs via Reuters.

The government has also proposed upgrading the airport in Kangerlussuaq, a former US military base in western Greenland, to accommodate F-35 fighter jets, broadcasters DR and TV2 said on Friday.

Denmark has already set aside $400 million to strengthen surveillance and intelligence in the Arctic and North Atlantic with long-range drones.

Trump this week reiterated his ambition to gain control over Greenland, a semi-autonomous Arctic territory of Denmark that the incoming US president views as crucial to American security.

Denmark, while responsible for Greenland’s security and defense, has limited military capabilities on the vast island. At present, these include four ageing inspection vessels, a Challenger surveillance plane and 12 dog sled patrols, all tasked with monitoring an area four times the size of France.