CK3 DatabaseCrusader Kings III · 1.20.0.3 “Crozier” · unofficial

Casus belli · Event wars

Nomadic Invasion

The war is called “Seljuk Nomadic Invasion of …”

Nomadic Invasion is a casus belli in Crusader Kings III (event wars). If the attacker wins: The Seljuk Nomads take the contested Titles by force. If the defender wins: The Seljuk Nomads are broken and forced to leave your lands. The war goal is worth 60% war score. Patch 1.20.0.3, from game/common/casus_belli_types/05_fp3_wars.txt.

Quick answers (2)
What do you get for winning a Nomadic Invasion war in CK3?
The Seljuk Nomads take the contested Titles by force (patch 1.20.0.3).
What happens on a white peace?
The Seljuk Nomads are granted lands in recognition of their prowess.

How the war ends

Attacker wins

The Seljuk Nomads take the contested Titles by force.

White peace

The Seljuk Nomads are granted lands in recognition of their prowess.

Defender wins

The Seljuk Nomads are broken and forced to leave your lands.

If the war becomes invalid

The … has ended: it was no longer valid to continue.

Who can declare it

The game shows no text of its own for these conditions; the script is below.

Every event wars war (the group's allowed_for_character) (1 line of game script)
herders_and_tributary_constraints = yes

As written in game/common/casus_belli_groups/00_casus_belli_groups.txt.

Attacker (allowed_for_character) (1 line of game script)
is_ai = yes

As written in game/common/casus_belli_types/05_fp3_wars.txt.

Defender (allowed_against_character) (1 line of game script)
is_landed = yes

As written in game/common/casus_belli_types/05_fp3_wars.txt.

When it can start (valid_to_start) (1 line of game script)
always = no

As written in game/common/casus_belli_types/05_fp3_wars.txt.

Source: game/common/casus_belli_types/05_fp3_wars.txt and the English localisation, Crusader Kings III 1.20.0.3. “The attacker”, “the defender” stand where the game names the character; “…” marks other words it fills in during play.