Gotta have the battle hymn. Here's a couple versions that might be good for a crowd: https://youtu.be/Jy6AOGRsR80
This version doesn't suit your purpose but hit me right in the feelz, figured others here would appreciate it: https://youtu.be/Ai3_pTg560U
Armed Forces medley is always appropriate: https://youtu.be/llT5iyA_zUA
Couldn't find a decent Space Force instrumental. Here's one with vocals: https://youtu.be/zSV3Q4ztGaA
Keep in mind that you'll want to use an ad-blocker if streaming these from YT.
Gotta have the battle hymn. Here's a couple versions that might be good for a crowd: https://youtu.be/Jy6AOGRsR80
This version doesn't suit your purpose but hit me right in the feelz, figured others here would appreciate it: https://youtu.be/Ai3_pTg560U
Keep in mind that you'll want to use an ad-blocker if streaming these from YT.