Forceful Advocacy

Just wondering what is the meaning of “forceful advocacy”. I’ve searched the internet, and can find it many times, but it’s not listed in an online dictionary as far as I know.

Generally it’s used in discussions of Chen Shui Bian’s forceful advocacy of Taiwan’s rights. It’s also used to talk about lawyers or judges actions in legal cases.

What does forceful advocacy mean in a forum? Does it mean arguing that your way is right in the face of opposition?

Finally, has George W. been “forcefully advocating” social security in his townhall meetings?