How to Plan and Attack with Divisions?

Quick take

How to attack. You can throw a division into combat by hand: select it and order it onto an enemy tile. Or group an army, draw a battle plan on the map, and hit execute (the auto-plan) — then divisions push along the arrows on their own.

How to set up. Put divisions into an army with a general. Draw a Front Line along the border with the enemy — that is “where we hold.” From there, draw an Offensive Line toward where you want to break through. Put assault divisions on a narrow sector; leave the rest of the front to line troops.

What planning is. While divisions sit on the plan’s start line and have not attacked yet, they build a preparation bonus. Base cap is about 30% to attack (techs and commanders raise it), gain is roughly 2% per day. Manual orders burn that bonus fast.

How to push. Wait for full or near-full planning → check supply and Organization → launch the plan on the chosen sector. Do not attack the whole line equally hard: break one place, hold the rest. If divisions are spent on Organization — pause, rest, then go again.

How attacking with divisions works

In Hearts of Iron IV you first need to declare war before you can attack. After that a division needs an order: manual, or through an army battle plan. Both work. The difference is control and the planning bonus.

One thing new players miss: drawing an arrow is not the same as attacking. Until you hit execute (or give a manual order), divisions just sit and prepare.

If Organization is too low, the game may refuse the attack: the division has to recover first. Do not shove red, exhausted divisions forward “because the plan looks pretty.”

How to set divisions up for an attack

Before an offensive, do not smear divisions evenly along the whole border — build them for a job.

1. Select divisions and put them in an army. Assign a general — without a commander, plans and bonuses work worse.
2. Draw a Front Line on your side of the border with the enemy. That order means “hold this line.”
3. From the Front Line, draw an Offensive Line (the arrow/strip toward where the divisions should advance).
4. For a narrow, fast thrust you can use “Spearhead”: divisions push harder toward the tiles you painted when you drew the order.
5. Split roles: assault divisions on the breakthrough sector (tanks, motorized, strong infantry with artillery). Ordinary line troops on the rest of the front so nobody punches a hole behind you.

You cannot properly draw an Offensive Line into thin air: you need a Front Line first (or a naval invasion). If the button will not draw — you usually forgot the front, or you are clicking outside the assigned zone.

Practical setup tip: better to put many divisions on a narrow axis than one on every border tile. A wide, even shove usually turns into a meat grinder with no breakthrough.

What planning is and why it matters

Planning is the preparation bonus for an offensive. In-game it is the battle-plan preparation bonus. While divisions sit on the plan’s starting positions and have not started executing, the bonus grows. When the plan launches or they leave the start line, the bonus drops.

What it actually buffs: planning boosts the division’s attack while advancing — Soft Attack and Hard Attack. In plain terms: the same divisions with full planning land more hits on the enemy while pushing forward. It is not “extra Organization” and not a Defense bonus: digging in is not what planning fixes. You want it so you can break a tile faster and cheaper on Organization.

A general’s Planning skill speeds up how fast the bonus fills. Signal companies and HQs also help divisions “inflate” preparation faster. With no army HQ, or with HQ far away, the cap and planning speed get cut — especially on long fronts.

So waiting on the bar is not for UI cosmetics. It is so the first punch hits harder: the enemy loses Organization faster, and your divisions get stuck in the tile less often. Beginner rule: draw the plan → wait for the bar → only then execute.

You can raise the planning cap. Doctrines, national focuses, field marshal traits, and HQ distance all help. Worth noting: the land grand doctrine Grand Battleplan and the operations subdoctrine Mass Assault each give +10% to max planning. So for 200 Army Experience you can pick up +20% to the planning cap.

How to plan an offensive properly and carry it out

1. Pick the sector. Not “the whole border.” One or two axes where terrain and supply let you break through.
2. Form the army and front. Front Line on your side; assault divisions already facing the chosen sector.
3. Draw an Offensive Line or Spearhead toward a real goal: a city, an encirclement, or cutting the enemy’s supply.
4. Wait for planning. While the bonus builds, check supply, Organization, reserves, and air over the tile.
5. Execute the plan with the execute button. Mode can be careful, balanced, or aggressive: aggressive pushes harder, but stretches the front more easily.
6. Watch the fight. If the push is working, help manually only in spots. If divisions melt on Organization — pause the plan and let them recover.
7. Secure the result. After the breakthrough, pull infantry into the hole. Do not send a lone tank wedge into nowhere with no cover.

Separate note: manual attacks on top of a plan burn planning faster. Micro is worth it to close a pocket or save a division — not to click every tile “because the AI is 5% dumb.”

Offensive tips

• Concentration first, width second. A breakthrough in one place beats a weak shove everywhere.
• Do not attack without supply. Red boxes kill tempo faster than enemy infantry.
• Protect Organization. A division at zero Organization retreats even if it still has plenty of men. Better to pause and rest than to grind with dead divisions.