There are similar and even more extreme examples from when war was definitely not "buttons": https://en.m.wikipedia.org/wiki/Christmas_truce https://en.m.wikipe

There are similar and even more extreme examples from when war was definitely not "buttons": https://en.m.wikipedia.org/wiki/Christmas_truce https://en.m.wikipedia.org/wiki/Christmas_truce I think the sibling comment to yours is a better explanation.