NATO has launched a new mission, “Arctic Sentry,” to strengthen its presence in the Arctic, the alliance announced on Wednesday. The initiative comes amid heightened tensions within NATO triggered by U.S. President Donald Trump’s stated desire for the United States to acquire Greenland.

According to NATO’s military headquarters, Arctic Sentry will coordinate the growing military activities of allied nations in the region. This includes exercises such as Denmark’s “Arctic Endurance on Greenland.”

“Arctic Sentry underscores the Alliance’s commitment to safeguard its members and maintain stability in one of the world’s most strategically significant and environmentally challenging areas,” said U.S. Air Force General Alexus G. Grynkewich, NATO’s Supreme Allied Commander Europe. He added that the mission will leverage NATO’s collective strength to protect allied territory and ensure security in the Arctic and High North.

Planning for the operation began after Trump and NATO Secretary General Mark Rutte met in Davos last month during the peak of the Greenland dispute. Following their talks, NATO agreed to take on a greater role in Arctic security, while Denmark, the United States and Greenland would continue separate discussions regarding the territory.

The United Kingdom is also set to play a key role in Arctic Sentry. British Defense Minister John Healey said UK armed forces would be actively involved in the mission. Additionally, the UK-led Joint Expeditionary Force (JEF) plans major military activities in the High North, with hundreds of personnel scheduled for deployment across Iceland, the Danish Straits and Norway in an exercise set for September.

The JEF includes Denmark, Estonia, Finland, Iceland, Latvia, Lithuania, the Netherlands, Norway, Sweden and the United Kingdom.