This was in 1325, when the two Italian states of Balona and Modina were fiercely opposed to each other.
At one point, some Modena soldiers entered the Baluna and stole a wooden bucket to draw water from the well, taking it with them, which caused the Balona to declare war on Modena.
The battle began on November 15, 1325, with a wooden bucket, which killed about 2,000 soldiers.
Modena's 8,000 troops fell heavily on Baluna's 32,000 troops, and Baluna's army had to flee without a bucket.
Modena never returned the bucket. This war was called the War of the Buckets. The bucket is still preserved in Modena, Italy.