德国硬气了：不怕跟美国打关税战！中方两张请帖，递到了欧盟手中

Group 1 - The core viewpoint of the article highlights Germany's sudden shift in attitude towards the U.S., indicating a deterioration in U.S.-EU relations amidst a global trade war [1][3] - Germany's strong response is not an isolated act but reflects the EU's collective reaction against the U.S. policies, including a 25% tariff on automobiles and a 50% tariff on steel and aluminum products [3][4] - The EU is actively seeking diversified strategic partnerships, with cooperation with China becoming a key element in countering U.S. trade protectionism [3][4] Group 2 - The upcoming visit of EU leaders to China signals a significant move towards strategic autonomy and reducing dependence on the U.S. [3][4] - The EU's changing stance towards China is a response to disappointment with U.S. unilateralism, indicating a desire for a more independent position in global trade [4][6] - For successful cooperation with China, Europe needs to demonstrate sincerity and take concrete actions to rebuild bilateral relations and mutual trust [6]