I spent 5 years in the Navy, and over 4 years on a ship through 2 deployments, and it became apparent real quick that without those people besides me, there would never any way that I could have done it. That it was no longer about patriotism as it was about fighting for each other. There was 12 people who died from either my ship or on other ships during this time, and one instance was from a helicopter going down, we spent 3 days searching for these guys, at which I'm pretty sure none of us could sleep, but be outside and doing as much as we can to look. This is how strong our bond was to each other.
Now my question is, after thousands of miles traveling, a lot without even shoes, hungry; after 2 long days of fighting at Gettysburg, 3 years into fighting for a split country, . What kept the charge going, how where they that motivated to push forwards when it seemed like a suicide charge? I mean these people where fighting against each other as best friends, fathers and sons, brothers, fellow veterans from years before.
If what keeps us together and fighting, is the brotherhood between troops today, what did it back then when they fought each other?
Keep in mind I'm writing this as a speech towards Pickett's charge, so any information should relate to that, and please include references you might have gotten the information from.