You have a terrific opener and conclusion. The dialog is where you really shine! In fact, I believe it's your writing forte.
To be honest, and this has nothing to do with your writing talent, the first thing I did when I opened your chapter was wince, in shock. I ask that you do something about the formatting. No line breaks make it nearly impossible to keep one's place. That is particularly important with paragraph breaks around the dialog. Making the story easy to read is an important issue; leaving it the way it is will most assuredly cost you readers.
But, back to the story. Your plotting skills are developing very well. This could be on its way to an interesting series.
I like your approach to telling this horrid tale. You set the stage clearly and maintained the regional of the how and the why. We not only see the children at work, but we also feel their beaten-down personage and hear the ping on their hammers.
Thank you. For a very well turned caution's tale and for giving another look at Flander's Field from the vantage point of a hundred years and with the knowledge that there really was no peace, only a temporary pause to start up again twenty years late.
YOu've done an excellent job of putting this powerful story into words. The phrasing suggests to me that the original text may have been written in a language other than English. However, the story still comes through very well.
The well done, story needs a bit of edit for the language of the expected audience but otherwise, it's a super story.