Battle of Alubarna

It is in this battle wherein the Rebel Army charged to defeat the Royal Army and force the king of Arabasta to surrender. Not knowing that the war between them was actually engineered and being set up by the Baroque Works, led by Sir Crocodile. Vivi would have blown up the Arabasta palace to catch the attention of the warriors fighting to urge them to stop the rebellion, but had failed to because of Sir Crocodile. Kohza, the leader of the Rebel Army who knows the secret entrance to the palace, witnessed the commotion within and had found out that it was Crocodile who stole the rain. He and Vivi rushed to the Royal Army to make them surrender to the Rebel Army to stop the rebellion. But the Billions of Baroque Works who invaded the Royal Army shot Kohza and thus continued the war.

On the other hand, the Straw Hats fought their own battle. Ussop and Chopper fighting with Mr.4 and Miss Merry Christmas; Sanji with Mr.2 Bon Kurei; Nami with Miss Doublefinger; and Zoro fighting with Mr.1, also known as Das Bones. The Straw Hats crew won the battle.

Luffy also had a hard time defeating Crocodile, and had at last won after their 3rd battle.