I have long worried about the politicization of the U.S. military. When officers openly identify with a particular party, they risk undermining their role as an instrument of whoever have legitimate power to control them. When American politicians court the armed forces and line up retired luminaries, they risk having the elected leaders seek out only Republican or Democratic officers for key posts.
That hasn't happened too much, yet, in the U.S., but it's a danger to be avoided. We now have another example where a foreign leader coopted the military to his own domestic policies -- Venezuela.
The NY Times explains how President Maduro has given military units and their leaders control over various domestic economic organizations, linking their personal interests to his own political success. He has created over 2,000 generals, using the army as a patronage bonanza. I believe the armed forces should be limited to their military roles, not used as a tool of political power.