Steel Panthers for the 21st century?
https://store.steampowered.com/app/5036770/Steel_Company/ (https://store.steampowered.com/app/5036770/Steel_Company/)
Is that WEGO or IGOYOUGO?
definitely Steel Panthers vibe! Looks like you can draw a rectangle around any area of Europe (earth?) and it will create a game map for it. Hopefully they sped things up in the video because I had trouble following the battle.