How is 'General Tso' (as in chicken) pronounced?

In the spirit of Eve’s anecdote, my (very Republican) boyfriend always researches the backgrounds of Chinese food generals before he will order their dish, so that he doesn’t end up accidentally supporting a Communist military leader by eating food named after him. Or something.

Is General Gau’s really the same as General Tso’s? I must admit I’ve never seen them both on the menu at the same place. I order Gau’s all the time but have not tried anything going under the name of Tso.