特朗普质疑北约：我怀有疑虑

Group 1 - The core viewpoint of the article is that President Trump expresses doubts about NATO's support for the U.S. when needed, despite affirming that the U.S. will always support NATO [2] - Trump complains that Norway has not awarded him the Nobel Peace Prize, indicating his ongoing grievances with international recognition [3] - The article discusses Trump's interest in acquiring Greenland, a territory of Denmark, and mentions that discussions within his team include the potential use of U.S. military force, which has drawn strong opposition from Denmark and other European nations [3]