Gods are immortal. Zeus didn't want an unending war with Gods being forced to take sides, and godly carnage destroying his kingdom.
So he forced them to sort out conflicts in a civilized way.
However, after the Athens incident Poseidon and Athena where always in competition with each other, at Troy, with Odysseus.
The only thing the managed to cooperate on was the horse drawn chariot.
Yes, Poseidon does fight with Zeus.
Poseidon fought with a trident, a three-pointed spear.
Poseidon
No, he does not.
Yes in the Gigantomachia (War of the Giants), Poseidon fought Polybôtês.
Odysseus didn't directly fight Poseidon, he fought the effects of the wrath of Poseidon. This was since Odysseus blinded the son of Poseidon, Polyphemus, and told him his name. Therefore, Polyphemus prayed to his father, asking him to punish Oeysseus.
Poseidon
i wouldnt be id fight for the south
No, but they are family, and families do fight.
They don't
Poseidon did get along with his family, but something he would fight with Hades and Zeus. ( Hades, Zeus, and Poseidon are considered the main three brothers.)
Zeus, Poseidon, and Hates got in a fight over name calling mostly.