from Cav
And frankly, it may be that the political "firewall" is part of what keeps us from developing effective comprehensive approaches to conflict. If war is ultimately political, we must be trained in that battlefield as well. Of course, partisanship by serving officers remains verboten.
focusing on "trained in that battlefield" -

Is "that battlefield" a political battlefied ?

If so, what does it look like ?

And, finally, what kind of training ?

I'm not sure what idea you are floating here - or, whether the paragraph is not internally inconsistent. I.e., all politics (even politics solely issue-oriented and not tied to a political party) are inherently partisan - you have at least two sides hammering and yammering at each other.