The "Friends Surprised" in the title is quoted from the telegram of the reactionary Kuomintang government. The quotation marks indicate both quotation and ridicule and negation. "AIA" is the so-called AIA, which refers to aggressive imperialism such as Britain, America and France; "Surprise" is the so-called surprise, but it is not surprising at all; "On" means discussing and refuting. Five words, concise and forceful, show that the key point is to refute fallacies.