普京：美方代表团将于下周到访莫斯科

Group 1 - The core viewpoint of the article highlights the ongoing diplomatic engagement between Russia and the United States regarding the Ukraine situation, with a focus on humanitarian issues such as prisoner exchanges [1] - Russian President Putin announced that a U.S. delegation will visit Moscow next week, indicating a willingness to discuss the U.S. proposals for resolving the Ukraine crisis [1] - There have been recent talks in Abu Dhabi between U.S. and Russian representatives, emphasizing the importance of dialogue in addressing the conflict [1]