You are coloring everything black and white.
Capitalism or Democracy=Good
Communism or The Soviet union=Bad
I'm Communist. Serious. And you all Should read this.
http://www.communism.com/
Click the "Frequentley Asked Questions About Communism".
But not forget that "Real" Communism can only work without military or Police if the Whole world is Communistic. Otherwise the Communistic countrys need defense throught military and Police.