I am wondering how to use a base layer that represents the timeframe of the battle, for example WWII. I would like to either create a base layer or see if they already exist
thank you
If you have historic aerial imagery, or scanned historic maps, you can georeference them to real-world coordinates. See this tutorial:
https://learn.arcgis.com/en/projects/georeference-imagery-in-arcgis-pro/
Also this documentation:
https://pro.arcgis.com/en/pro-app/latest/help/data/imagery/georeferencing-tools.htm
