Denmark, a country along the Arctic Silk Road, wields considerable influence in Arctic affairs. Greenland constitutes the geographical basis of the Kingdom of Denmark's participation in Arctic affairs and the cornerstone in the implementation of its Arctic strategy. Nowadays, Greenland has become a transitional political entity whose internal affairs are completely independent while defense and foreign affairs are temporarily hosted by Denmark. Denmark introduced the Reform of the Danish Diplomacy and Defense and the Future of the Ministry of Defense Mission in the Arctic in 2016, which marked the transformation of Danish Arctic strategy from moderate conservatism to aggressive activism. The transformation of the Danish Arctic strategy is not only the inevitable result of profound changes in the geopolitical pattern of the Arctic, but also driven by the separatist crisis within the Kingdom of Denmark. Focusing on the strategic anchor of Greenland and persisting in the principle that “the Kingdom of Denmark is an indivisible unitary actor” constitute the cornerstone of the Danish Arctic strategy.