US fight with other countries so 国共内战 not a good example

to refute. 中越之战, VN total civilian and military isn't over 50,0000. Again, not a good example to refute him. Plus, you didn't answer him about US in 100 years had started > 150 wars. Therefore, this post has no power to refute back to him. Choose better examples to write back before say to him: 屁股大也无脑