Tactics are concerned with the conduct of an engagement, while strategy is concerned with how different engagements are linked in a bigger overall plan of action.

The right strategy makes tactics work better. The right strategy puts less pressure on executing your tactics perfectly.

You should really put those two lines in quotations. I know the second line is word for word from Seth Godin's blog (http://sethgodin.typepad.com/seths_blog/2007/01/the_differen...), and quick check had your first line pretty close to word for word from Wikipedia.

You are of course correct, editing isn't possible now.

It's all good. This is the internet after all. But for me, a simple acknowledgement goes a long way. Cheers.