Unfortunately, the answer is, sadly, no.
Just look at his numerous policy 180's he did when he was on the Sore/Loserman ticket.
It's nice to see he's not backing down on this issue, however....
though I don't like their politics, I do have to say both Lieberman and McCain have been SOLID in their support of the military (McCain MUCH MORE because of his personal experience, Lieberman for the political gain)...