| Castellammarese War | |
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| Date | 1st December, 2025 - 1st December, 2025 |
| Casus belli | La Cosa Nostra :
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| Result | La Cosa Nostra victory:
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Overview[]
The Castellammarese War is a war that began when La Cosa Nostra, a mafia alliance, was sent leaked screenshots of messages showing the government members of The Godfathers, another mafia alliance, planning to attack La Cosa Nostra after their raid on the Nope Alliance. La Cosa Nostra took military action and posted a Declaration of War against The Godfathers on December 1, 2025. The war lasted less than a day when The Godfathers decided to merge into Cats Club leading to La Cosa Nostra's swift victory. The Castellammarese War is also the second war where La Cosa Nostra forced the opposing alliance to disband and merge into another alliance. During the war, The Godfathers suffered $1.7 billion in damages while La Cosa Nostra only suffered $600 million in damages.