It's actually for internal consumption. Why did Saddam need such a buildup?
The oppressor needs to externalize the threat, in order to maximize control over the people.
But there are limits, even in China. They are perhaps the world's most patient people, but even they will work to throw off the yoke of oppression.
We have to show them that we are NOT their enemy, and that in fact the People's Army is only meant for the People's Oppression.
E-mail them a few messages.