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title: Digging-in

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::: mw-parser-output

**Digging-in** represents the establishment of defensive structures by a

stationary land unit in preparation for an attack. These preparations

allow the defending army to withstand a stronger attack from an opposing

force. Hearts of Iron II represents these preparations as a **dug-in

modifier** . Units at war and without moving orders will add to their

dug-in modifier daily. Digging in is automatic but only happens when you

are at war.

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# [ Combat Effects ]{#Combat_Effects .mw-headline}

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Units with a dug-in combat modifier will have an additional bonus to

their defense effectiveness versus enemy air and land units. Dug in

status can increase up to 20 and increases about 1 per day. Each dug in

level is worth 1 combat modifier meaning that defenders can get a

maximum +20 combat modifier in land combat. This modifier can be

substantial against attacking air units, making any damage incurred by

the defending units as almost negligible.

:::

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