Arc 13The Battle for Marineford

Leo’s Revolutionary Army defeated the Navy’s first response, seized Impel Down’s prisoners, and drew Kaido into a war against Marineford. The arc left the Marines and Beasts Pirates locked in a brutal battle, with Garp striking Kaido amid the wreckage.

  • Leo outfitted his allies in Revolutionary Army uniforms and began a worldwide broadcast as the Navy fleet sailed toward Jaya Island.
  • Enel, Ace, Sabo, and Issho battered the Marines with lightning, fire, and a summoned meteor, forcing Sengoku to order a retreat and making the Revolutionary Army’s victory public.
  • Dragon led the prison raid at Impel Down, where the Revolutionaries rescued prisoners and took their Devil Fruits while Magellan discovered the levels empty.
  • Whitebeard accepted the Revolutionary Army’s proposed deal, while Kaido mobilized the Beasts Pirates and Wano samurai to attack Marineford.
  • Leo decided the Revolutionaries would stay out of the coming war, explaining that the Navy’s collapse would threaten world order and that Kaido was likely to lose.
  • Koby arrived at Jaya Island to install a Live Bug, then returned to Marineford as Sengoku announced Kaido’s invasion and rallied the Marines.
  • The Marines used delayed-fuse shells and poison gas against the Beasts fleet, while the Wano samurai stormed Marine warships and heavy fighting erupted.
  • Kizaru and Aokiji fought King, Akainu clashed with Kaido, and Garp charged through Akainu’s magma to strike Kaido and blast him into wreckage.
Chapters 302–326 Vol. 4 Read

Ch. 302Live Broadcast vs. Live Broadcast (1/2)

Leo outfitted Trafalgar Law, Fujitora, Jinbe, Drake, Bonney, and Hancock in Revolutionary Army uniforms as the group gained a shared sense of purpose. After the News Birds reported that broadcast Den Den Mushi were ready, Leo prepared to begin the broadcast campaign against the Marines.

  • Trafalgar Law changed into a dark blue Revolutionary Army uniform, while Fujitora and Jinbe emerged wearing uniforms with blood-red capes.
  • Leo explained how the Revolutionary Army used standard uniform sizes and described how Inazuma and Moria supported its logistics and infrastructure.
  • Drake and Bonney changed into Revolutionary Army uniforms, and Hancock wore the short-skirt design beside Leo.
  • The newly uniformed group looked each other over and felt a shared sense of mission and honor.
  • A News Bird told Leo that the broadcast Den Den Mushi were set up and that News Birds had been sent out to establish more channels than the Marines.
  • Leo announced that it was time to begin the grand performance, and Morgans answered, "Yes, Commander-in-Chief!"

Ch. 303The Marines Are Here (2/2)

Leo assembled the Revolutionary Army’s forces on Jaya Island and began a live broadcast as more than a dozen Marine warships approached. The broadcast revealed the army’s powerful lineup, while Leo’s real plan remained to draw away the Marines’ main force and raid the Underwater Great Prison.

  • Leo coordinated with News Birds and local Revolutionary Army officers to establish broadcast locations across the Four Seas.
  • Hancock, Smoker, Ace, Enel, and Sabo gathered beside Leo, surprising Drake, Trafalgar Law, and Bonney with the Revolutionary Army’s strength.
  • Leo intended to draw the Marines’ main force to Jaya Island before attacking the Underwater Great Prison and taking its imprisoned Devil Fruit users.
  • Morgans began broadcasting Leo and the assembled Revolutionary Army leaders to the world.
  • Morgans showed viewers Magic Valley City, a red flag, and more than a dozen Marine warships sailing toward Jaya Island.

Ch. 304Eat My Railgun! (3/2)

Leo confronted the Navy’s overwhelming fleet in a public broadcast and ordered Enel to greet them with a molten trident. As the Navy began its own broadcast, Sengoku transformed after spotting the incoming attack.

  • Nico Robin watched the Navy fleet from the harbor and drew strength from her companions and Leo.
  • Morgans’s broadcast showed Leo facing the fleet, stirring viewers with the image of his lone figure confronting the Navy’s forces.
  • Leo praised the Navy’s lineup and ordered Enel to attack.
  • Enel heated an iron ingot into a trident and hurled it toward the Navy fleet.
  • A messenger showed Sengoku Leo’s broadcast, and Sengoku ordered the Navy to begin broadcasting too.
  • Sengoku saw Enel’s trident coming and transformed into a towering golden giant as someone shouted, “Enemy attack!”

Ch. 305Battle of Natural Disasters (1/2)

Enel opened the battle against the Marine fleet with a long-range electromagnetic cannon, while Sengoku and Kizaru stopped his attack and Aokiji protected the ships with ice. Ace and Sabo charged into battle together, where their combined fire and wind met Aokiji’s Ice Age, leaving the fleet facing a clash of natural disasters.

  • Enel fired an electromagnetic cannon at Sengoku’s flagship, but Aokiji raised an ice wall and Sengoku blocked the attack before Kizaru kicked Enel’s trident into the sea.
  • Bonney and Trafalgar Law watched the display of Admiral-level power in amazement as the battle was broadcast.
  • Leo sent Ace and Sabo to fight the Marines at sea before they could approach.
  • Ace and Sabo combined their powers into a Fire Tornado and launched it toward the Marine fleet.
  • Aokiji used Ice Age to raise a thick ice wall against the Fire Tornado, which began melting the ice on impact.

Ch. 306Kidney Strike! (2/2

Ace and Sabo’s Fire Tornado trapped the Marines beneath Aokiji’s ice dome, while Kizaru attacked Ace and Enel struck Kizaru from behind. The battle continued as Enel evaded Momousagi’s counterattack and Kizaru recoiled from the blow to his kidney.

  • Sabo supplied Ace with concentrated oxygen, intensifying the Fire Tornado and forcing Aokiji to maintain an ice dome over the Marines.
  • Sengoku returned to his deck with a badly wounded right hand and ordered Kizaru to attack.
  • Kizaru passed through the ice dome and flames, kicked Ace in the face, and pressured him in an aerial fight.
  • Enel struck Kizaru in the kidney with his Armament Haki-coated staff and followed him down with a lightning attack.
  • Momousagi launched into the air and slashed Enel, who turned into lightning and escaped back into the sky.
  • Kizaru pressed his injured waist and reacted to the kidney strike.

Ch. 307Natural Disasters! Natural Disasters! Natural Disasters! (1/2)

Enel, Ace, and Sabo used their ability to fly to gain control of the battlefield, forcing Sengoku to consider retreating. Leo asked Issho to hinder the Marines, and Issho drew his sword and attacked, though the chapter ended before the result was shown.

  • Enel stayed high above the Marine fleet after Momousagi had checked him, and the Marines realized their opponents could attack from the air.
  • Leo predicted that the Marines would retreat because most of their forces could not fly, and explained that the Admirals would be vulnerable in a high-altitude fight.
  • Akainu urged Sengoku to press toward Jaya Island, but Sengoku ordered the Marines to preserve their strength and warned that the Revolutionary Army's leaders had yet to act.
  • Leo asked Issho to cause the Marines trouble, and Issho drew his sword and brought it down in a powerful slash.

Ch. 308Are the Marines Any Good? (2/2)

Issho summoned a meteor against the Marines, and Kizaru, Sengoku, Akainu, and the Vice Admirals worked together to destroy it. The Marines survived the attack, but the watching world wondered whether they were about to lose.

  • Bonney, Drake, and Trafalgar Law saw a blazing meteor approach and realized Issho had summoned it.
  • Sabo and Ace recognized Issho’s strength and worried about the pressure he placed on the Revolutionary Army’s fighters.
  • Kizaru cut the meteor into fragments with his Heavenly Cloud Sword, while Sengoku and Akainu attacked the falling rocks.
  • The thirteen Vice Admirals joined the Admirals in protecting the warships and clearing the meteor fragments.
  • Viewers around the world saw the Marines commit their full force against Issho’s attack and wondered if they would fail.

Ch. 309Faith Collapses (1/2)

Ace, Sabo, Enel, and Leo’s forces overwhelmed the Marines as Sengoku ordered a counterattack and prepared the fleet to retreat. The Marines’ strongest coordinated assault failed, and viewers watched their belief in Marine invincibility collapse.

  • Viewers concluded that the Marines could not withstand Ace, Sabo, Enel, and the unseen fighter who had sent a meteor at them.
  • Leo’s group used Marigold and Sandersonia to protect him while Ace and Sabo unleashed another firestorm on the Marines.
  • Sengoku ordered the Vice Admirals to attack and told the rest of the fleet to scatter and rendezvous at G-5 Base.
  • Enel intercepted Borsalino as the two clashed, while Akainu and the Vice Admirals broke through the firestorm to attack Ace and Sabo.
  • Ace and Sabo released bursts of flame and wind that blasted all thirteen Vice Admirals away, shattering viewers’ faith in the Marines’ invincibility.

Ch. 310The Navy's Crushing Defeat (2/2)

Leo ended the Revolutionary Army’s battle with the Navy, ordering Ace, Sabo, and Enel to retreat after they had gained prestige. The Navy’s commanders abandoned pursuit to investigate the missing Revolutionary Army main force, while Morgans’s camera captured their retreat and the Navy’s crushing defeat.

  • Leo told Jinbe to signal Ace, Sabo, and Enel to return because the war was already over.
  • Jinbe fired a flare, and Issho and Jinbe went to cover the three fighters as they withdrew toward Jaya Island.
  • Sengoku rejected Aokiji’s suggestion to pursue and ordered the Navy commanders to head for G5 Branch to find the Revolutionary Army’s main force.
  • The Navy commanders worried that the Revolutionary Army’s main force might be attacking the Holy Land of Mary Geoise.
  • Morgans’s camera recorded the Navy commanders running away across Aokiji’s ice path, cementing the Revolutionary Army’s victory in the public eye.

Ch. 311Underwater Prison Grand Operation (1/2)

The Revolutionary Army launched a raid on Impel Down to take Devil Fruit users from the prison, while rescuing prisoners from its brutal conditions. After Dragon’s forces entered Level Six, they prepared to begin the operation.

  • Dragon led Moria, Marigold, Rebecca, Violet, and Kyros to Impel Down to seize prisoners’ Devil Fruits and save whoever they could.
  • Violet used her Glint-Glint Fruit to map Levels Six and Five, noting the Seastone cuffs on many Level Six prisoners.
  • Dragon ordered Moria to carve out an intermediary level between Levels Five and Six, then opened a door and entered Level Six with Moria and Marigold.
  • The Revolutionary Army submarine rose into Level Six as the soldiers cut off the prison’s surveillance and communications.
  • The Level Six prisoners clamored for escape, while disciplined Revolutionary Army soldiers disembarked and prepared to begin.

Ch. 312Clearing Out Level Six (2/2)

The Revolutionary Army continued its raid on Impel Down, turning Level Six prisoners into toys and moving them toward the submarine while the prison guards sealed the escape routes. Dragon ordered the operation to continue after Violet reported that the guards had not advanced.

  • After Den Den Mushi on Level Six lost contact, Magellan ordered Shiryu transferred to Level Five and told the guards to seal the passages.
  • Magellan hurried off to the toilet, while Impel Down's guards prepared to contain the riot by cutting off food and escape routes.
  • Shiryu waited at the Level Five gate as the prison's steel gates closed and its spiral staircases retracted.
  • Rebecca turned prisoners subdued by Hina into toy dolls and ordered them to walk to the submarine.
  • Vajra Shot, the Great Drunkard, and Catarina Devon tried to resist, but the Revolutionary Army subdued the troublemakers and advanced.
  • Violet reported to Dragon that only Shiryu was stationed near Level Five and that the guards had not moved, so Dragon ordered the operation to continue.

Ch. 313Gross Dereliction of Duty, Shiryu Takes Office (1/2)

Magellan and Shiryu discovered that the prisoners had vanished from Impel Down’s fifth and sixth levels, and Magellan reported the apparent mass escape to Marine Headquarters. Shiryu believed the crisis would cost Magellan his position and leave Impel Down under his control.

  • Magellan arrived at the fifth level and asked Shiryu whether the prisoners had charged upward, but Shiryu said none had.
  • Magellan and Shiryu searched the empty fifth level and found that even its military wolves had disappeared.
  • Magellan entered the sixth level and found it empty as well, then transformed into a venom dragon and searched the prison in alarm.
  • Magellan summoned the other guards and reported the prisoners’ disappearance to Marine Headquarters over a direct Den Den Mushi line.
  • Shiryu smoked quietly and thought Magellan would not escape blame, leaving Impel Down to become his domain.

Ch. 314A Deal Among the Four Emperors (2/2)

Bunny Joe visited the Whitebeard Pirates to propose a deal on behalf of the Revolutionary Army, and Whitebeard accepted after hearing the terms. The chapter ended with Bunny Joe completing his mission and Whitebeard warning him not to betray the agreement.

  • Whitebeard and his crew laughed at the Marines’ setback and began celebrating aboard the Moby Dick.
  • Bunny Joe arrived on the Moby Dick and asked to discuss a top-secret matter with Whitebeard.
  • Whitebeard sent most of his crew below deck, keeping his division commanders to hear Bunny Joe’s proposal.
  • Bunny Joe explained the Revolutionary Army’s deal and said it had not approached Kaido or Big Mom, while an envoy had visited Red-Haired.
  • Whitebeard accepted the deal and warned Bunny Joe of the Whitebeard Pirates’ wrath if the Revolutionary Army deceived him.

Ch. 315Kaido's Unusual Move (1/2)

After the Marines' defeat, Kaido saw an opportunity to destroy Marine Headquarters and claim their power, so he prepared to lead the Beasts Pirates and half of Wano Country's samurai to Marineford. He left Kurozumi Orochi believing Wano Country would be his personal domain while Kaido pursued conquest.

  • Big Mom's eating disorder halted the BIGMOM group's operations, while Kaido mobilized the Beasts Pirates to exploit the Marines' defeat.
  • Kaido decided to attack Marineford before the remaining pirates had gathered, confident that he could overwhelm the weakened Marines.
  • Kaido brought Kurozumi Orochi to the great hall on Onigashima and announced that half of Wano Country's samurai would join his campaign against the Marines.
  • Kurozumi Orochi welcomed Kaido's departure, expecting to rule Wano Country alone, while Kaido privately planned how to manage the country in his absence.

Ch. 316The Nine Red Scabbards' Opportunity (2/2)

Kaido gathered Wano Country’s samurai for the Beasts Pirates, unknowingly giving the Nine Red Scabbards a chance to leave Wano and find their young lord. After the Navy debated Sengoku’s fate, the Five Elders gave him one last chance to respond to Kaido’s movements.

  • Doflamingo laughed at Kaido’s speech, and Ulti rebuked him while the other Tobiroppo showed their dislike of him.
  • A pompadoured Red Scabbard saw Kaido’s gathering as a chance to escort Hiyori out of Wano, while another was delighted at the prospect of finally leaving to find their young lord.
  • The Beasts Pirates spent five days assembling their forces as Kaido weakened Kurozumi Orochi’s power and increased his own.
  • After returning to Marineford, Sengoku and the Admirals received Magellan’s report, and the Navy demoted Magellan and appointed Shiryu of the Rain temporary warden of Impel Down.
  • The Five Elders and Kong debated Sengoku’s punishment until a CP0 agent reported Kaido’s unusual movements.
  • The Five Elders ended the debate by giving Sengoku one last chance to handle Kaido, warning that another failure would bring severe consequences.

Ch. 317Beasts Pirates Set Out! (1/2)

As Kaido mobilized the Beasts Pirates and forces across Wano Country, Hiyori Kozuki and Denjiro prepared to act without trusting the Nine Red Scabbards, while Ashura Doji planned to seize Udon prison. Hiyori left Wano aboard a Beasts Pirates ship with Denjiro and the newly arrived Kawamatsu as the fleet set sail.

  • Hiyori Kozuki agreed with Denjiro that they had to take the initiative but refused to risk contacting the other Nine Red Scabbards while a traitor might be among them.
  • Ashura Doji gathered his allies and ordered them to capture Udon prison and rescue the prisoners while he held off the expert stationed in Kuri.
  • Kaido mobilized the Beasts Pirates, and Denjiro led Hiyori, disguised in a cloak and mask, aboard one of the fleet's ships.
  • Kawamatsu emerged from the sea and reported for duty, surprising Denjiro and relieving Hiyori.
  • Hiyori led Kawamatsu into the cabin as the Beasts Pirates fleet sailed out of Wano Country's harbor.

Ch. 318Refusing to Turn Back Until You Hit the Wall? (2/2)

Sengoku decided to livestream the Navy’s coming war against Kaido, arguing that the Navy should stop hiding behind an invincible image and show the world what it sacrificed to protect people from pirates. The Navy’s officers accepted the decision and waited at Marineford for the Beasts Pirates to arrive.

  • The Navy’s officers questioned whether Sengoku should continue the livestream, but recognized that he had preserved the Navy’s strength despite the Revolutionary Army’s attacks.
  • Sengoku explained that the Revolutionary Army had already damaged the Navy’s reputation by exposing its defeats, so the Navy had nothing left to gain by concealing the truth.
  • Sengoku argued that the Navy stood for justice when fighting pirates and should show the world the sacrifices it made to protect ordinary people.
  • Tsuru and the Navy’s officers agreed to broadcast the battle against Kaido and prepared to defend Marineford, determined to restore the Navy’s honor.

Ch. 319Variables in the War (1/2)

Kaido and the Revolutionary Army assessed the looming conflict, with Leo arguing that Kaido would lose and that the Marines could not be defeated without consequences for the world. The chapter ended as Leo began explaining why the Marines would survive.

  • King reported that two ships had gone missing, and Kaido asked whether the Marines had made any moves.
  • King realized Kyoshiro and Doflamingo had been aboard the missing ships, while Kaido revealed that Jack was ordered to kill Kurozumi Orochi and support Yamato if he were defeated.
  • Sabo asked Leo whether the Revolutionary Army should join the war, but Leo said Kaido was bound to lose.
  • Leo explained that the Revolutionary Army should not try to destroy the Marines because the resulting collapse of order would harm the world and be blamed on them.
  • Leo began explaining to Sabo, Issho, and Jinbe why the World Government would not let the Marines fall.

Ch. 320Beyond the Battlefield

Leo explained why Kaido’s attack on the Navy was risky, but potentially successful, and decided the Revolutionary Army would stay out of the fight and focus on strengthening itself. The chapter ended with Second Lieutenant Koby arriving in Magic Valley City to install Den Den Mushi by order of the Fleet Admiral.

  • Leo argued that Kaido’s enormous dragon form would draw concentrated fire, while the Navy still retained its top fighters and aerial advantage.
  • Leo revealed that Morgans’s broadcast had concealed the battle’s casualties, misleading the other Four Emperors into thinking the Navy was weakened; only Kaido had acted on the opportunity.
  • Sabo questioned whether Kaido could win if he had come prepared, and Leo predicted the battle’s victor would be known within ten days.
  • Leo told the others that the Revolutionary Army would not join the conflict, choosing instead to develop its strength and organize its government.
  • Nico Robin spotted the Navy setting up Live Bugs, and Second Lieutenant Koby introduced himself and announced that he had come to install Den Den Mushi by order of the Fleet Admiral.

Ch. 321The Next Fleet Admiral?

Leo questioned Koby, a young Marine sent alone by Garp to install a Live Bug in Revolutionary Army territory. Koby’s courage impressed Leo and the others, who wondered whether he might become the next Fleet Admiral.

  • The Revolutionary Army crowd made way for Leo, whose authority had grown after their recent victory.
  • Leo confirmed that Koby was a Marine Second Lieutenant from Marine Headquarters and asked whose order had sent him there.
  • Koby said Vice Admiral Garp had ordered him to come alone, and Leo considered what the mission might mean.
  • Leo told the revolutionaries not to frighten Koby and agreed to let him install the Live Bug, but Koby admitted he had never thought about where to place it because he expected to die.
  • Issho and the others were moved by Koby’s resolve, and they wondered whether he could become the next Fleet Admiral.

Ch. 322Meeting the Attack (2/2)

Leo questioned Koby about Marineford’s preparations for Kaido’s invasion, then let him return to the Marines. As the Revolutionary Army watched, Sengoku broadcast an order for every Marine to meet the Beasts Pirates in battle.

  • Leo asked Koby about Marineford’s morale and preparations, and Koby said Sengoku had ordered a full mobilization and evacuated civilians to Mary Geoise.
  • Sabo, Jinbe, and Issho concluded that the Marines’ willingness to die in battle could let them defeat the Beasts Pirates despite heavy casualties.
  • Leo dismissed Koby without recruiting him, and Koby hurried back to Marineford.
  • Sengoku addressed Marines and viewers across the seas, announced Kaido’s invasion of Marineford, and ordered the Marines to meet the Beasts Pirates in battle.

Ch. 323A Mourning Army Is Bound to Lose (1/2)

The Marines launched a carefully prepared assault on the Beasts Pirates, whose crew initially mistook the first inaccurate volley for a sign of Marine weakness. The second bombardment revealed the Marines’ rapid-fire cannons and delayed-fuse shells, inflicting heavy casualties on the Beasts fleet.

  • The Marines assembled their fleet while Sengoku and Tsuru stayed at Marineford to guard against a surprise attack.
  • Kizaru joined Akainu and Aokiji aboard the flagship as the Marines prepared to fight the Beasts Pirates.
  • The Marines’ first volley missed most of the Beasts fleet, and the Beasts Pirates and Wano Country samurai laughed at them.
  • Observers explained that the Marines were adjusting their firing range, while Yasopp recognized the cannons’ rapid reload speed.
  • The Marines’ second volley burst above the Beasts fleet, and shell fragments killed and wounded many people on deck.
  • Leo identified the shells as delayed-fuse ammunition and realized the Marines had advanced weapons technology.

Ch. 324Great Page (2/2)

The Marines battered the Beasts fleet with cannon fire before Akainu and Aokiji launched powerful attacks, while Kaido drove his fleet forward and countered. The Marines’ assault escalated as Queen and King prepared to strike the enormous glacier hanging overhead.

  • The Marines’ cannon barrage injured the Beasts fleet, and Kaido ordered his ships to accelerate toward them.
  • Sengoku and Akainu mocked Kaido for attacking after assuming the Marines had been weakened, while Kizaru broadcast their exchange.
  • Akainu unleashed Great Eruption, and Kaido shattered the incoming magma with Thunder Bagua.
  • Aokiji created a massive inverted glacier above the Beasts fleet with Great Glacier.
  • Kaido entered his half-beast form and called for Queen and King as Queen and King prepared attacks against the glacier.

Ch. 325Banzai Charge (1/2)

The Beasts Pirates used poison gas and Wano Country samurai to turn the battle against the Marines, while Kaido’s attack heightened Sengoku’s suspicions about the Marines’ missing top officers. As the Marines fell into chaos, Garp charged into battle and Sengoku prepared to target Kaido.

  • King pierced the Marine-made iceberg, Queen stopped it with Brachio Bomber, and Kaido shattered it with his Haki.
  • Queen ordered the Beasts Pirates to fire poison-gas shells at the Marine fleet, and the gas began seeping through soldiers’ skin.
  • Onigumo and other commanders ordered the Marines to use gas masks or escape underwater, but the gas overwhelmed even some officers who had mastered Life Return.
  • Wano Country samurai charged through the poison mist and swarmed Marine warships, overpowering the Marines at the cost of their own lives.
  • Sengoku called on Garp to stop watching, and Garp launched himself toward the battlefield.
  • Sengoku resolved to kill Kaido, whose defeat could stabilize the Four Seas.

Ch. 326Simultaneous Strike (2/2)

The Admirals attacked the Beasts Pirates as their fleet approached Marineford, with Kizaru, Aokiji, and Akainu confronting King and Kaido. Garp joined Akainu’s fight and sent Kaido crashing through a warship, leaving the ship in wreckage.

  • Kizaru used his speed and laser sword to strike down airborne Zoan users while King tried to stop him.
  • Aokiji attacked King with an ice phoenix, and their collision sent King flying.
  • Akainu clashed with Kaido aboard a warship, trading blows that shook the vessel and unleashed Haki shockwaves.
  • Kaido sensed Garp rushing toward him and shouted a warning.
  • Garp charged through Akainu’s magma and struck Kaido, blasting him and the warship into wreckage.
Arc 13 of 27