Winning vs. losing?

During a joint appearance with Hamid Karzai, President Bush fielded some questions...

[Q:] ...and if I may ask you, Mr. President, as you know, the casualties of Iraq is again high today -- 50 more people dying. Do you think that insurgence is getting harder now to defeat militarily? Thank you.
PRESIDENT BUSH: No, I don't think so. I think they're being defeated. And that's why they continue to fight...

So... we're continuing to fight, too, right? Does that mean we're losing, also?