The commercial is a pretty good depiction of what happened.
On one website, it was called a heartening proof that the soldiers' essential humanity remained. They saw the event as uplifting. But every silver cloud has a fecal lining.
From an article in the November, 2014 issue of National Geographic:
"No one there wanted to continue the war," [author, Stanley] Weintraub said. But the top brass did, and threatened to punish troops for shirking duty. As the new year began, both sides "went on with the grim business at hand."
Absurd, is it not? This is how the many are herded, lead and eventually slaughtered at the whim of the few.
So, let's all cheer war like it is a football game. That will get us far. Some day they are going to give a war and...we'll just keep doing what we are told.