flag-waving

1. N-UNCOUNT You can use flag-waving to refer to the expression of feelings for a country in a loud or exaggerated way, especially when you disapprove of this. 强烈的民族情绪[表不满]

The real costs of the war have been ignored in the flag-waving of recent months. 战争的真正代价在近几个月里所表现出的强烈民族情绪中被忽略了。