Lady Antebellum is teaming with National Geographic and Musicians on Call for their new “Army” video—and the trio wants your help, too.

Lady A is asking fans to submit photos or clips of their personal heroes to be included in the video. From now until Nov. 7, fans can submit photos or videos via Facebook, Twitter and Instagram by using #MyArmyContest and tagging @NatGeoChannel.

The Lady A partnership coincides with National Geographic’s new mini-series, Long Road Home, which premieres on Nov. 7 and is centered on the Iraq War battle known as “Black Sunday.”

For every use of #LongRoadHome, National Geographic will donate $1—up to $75,000—to Musicians on Call, an organization that brings music to the bedside of hospital patients.

Check out Lady A’s promo below.

https://www.youtube.com/watch?v=DjrfFkDBMuw