POLITICS 03/28/2008 02:45 am ET | Updated May 25, 2011 Rock Band 3 Doors Down Advertises For National Guard Watch the National Guard tribute song by rock band 3 Doors Down that is being shown to movie audiences during previews. Read more about the video on the National Guard website. Read about 3 Doors Down. Do you have information you want to share with HuffPost? Here’s how. MORE: Army And Previews National Guard Recruitment Army Recruitment 3 Doors Down National Guard Subscribe to the Politics email. How will Trump’s administration impact you?