I don't know if they support US policy, but they are not and have never made public statements toward politics. And that band is METALLICA!
And they are the favorite band of our fighting force. It is a very common sight in military units to see Metallica logos, song titles, and other Metallica items painted on bombs and aircraft.
In Afghanistan there was a black hawk helicopter with the Metallica character Scary Guy painted on it with the Metallica song title Creeping Death painted below it.