欧洲七国，发布联合声明！

Group 1 - The core viewpoint of the article emphasizes the importance of Arctic security as a key priority for Europe, crucial for international and transatlantic security [1] - A joint statement from European leaders highlights NATO's focus on the Arctic region, with increased presence, activities, and investments to maintain security and deter adversaries [1] - The statement asserts that Arctic security must be achieved within the NATO framework, in collaboration with allies including the United States, while respecting the principles of the UN Charter [1] Group 2 - The article mentions that Greenland is part of the Kingdom of Denmark and NATO, and that matters concerning Greenland should be decided by Denmark and the Greenlandic people [1] - The U.S. Special Envoy to Greenland stated that President Trump supports Greenland's independence [1]