40 width are better then 20 width in almost any occasion battle wise as they will have much more firepower. Develop detailed historic tanks and planes through research and army experience. learning the basics of combat, production, and assigning units and comman-ders. This maximum may be exceeded, but only by the minimum required to completely fill the “front”.
The combat widths of each division in a battle are added together to determine how many of those divisions will fit into the width of the frontline and fight. … Top 5 Division Templates - Hearts of Iron 4 Best Templates (Hearts of Iron 4 Strategy Guide) Cristo's Comprehensive Guide to HOI4 - Part 3, Battleplans and Commanding Troops. 40 width tank division are good if you can afford it, the AI always builds their units the same way, and if you have enough armor you can make your units armor unpierceable from the enemy. 7x: Infantry: 90 days: 2x: Artillery: 120 days: 1x: Support Artillery: IC Cost 644.
Exceeding frontge gives you signfiicant combat penalties.
