欧洲领导人发表声明：必须保护欧洲和乌克兰的安全利益

Group 1 - The core viewpoint of the article is the support from six European leaders and the EU Commission President for the upcoming meeting between US President Trump and Russian President Putin to address the Ukraine crisis, emphasizing the need to protect the security interests of Europe and Ukraine [1] - The joint statement from the leaders of France, Italy, Germany, Poland, the UK, and Finland highlights the importance of continuing support for Ukraine and applying pressure on Russia [1] - The statement asserts that a diplomatic solution must safeguard the significant security interests of Ukraine and Europe, and that Ukraine's participation is essential for determining its path to peace [1] Group 2 - Trump announced the meeting with Putin will take place on August 15 in Alaska, which was later confirmed by a Russian presidential aide [1]