This Civil War Photo Is Both Strange And Amazing

I just have so many questions about this photo.

Via vintag.es

Library of Congress description:

"Three unidentified men in Union uniforms and two unidentified men, one pointing a revolver at another's head."

Why is he holding a gun to his head?!

What's going on here?

Okay, this is just adorable.

( Library of Congress via Everday Vintage)