G-4

G-4 is a Marine base located near the end of Paradise, the first half of the Grand Line. Acting as a post to monitor Pirate Crew moving to and from the New World, it also serves to guard one of the entrances to Mariejois and thus protects the World Government directly from pirates and revolutionaries.

It serves as the central location of the Decisions Arc, wherein the base was assaulted by the impromptu alliance of the Shuffle Pirates, the Snowdove Pirates as well as a Marine Separatist fleet led by Former Rear Admiral Jarvis Ashur in order to facilitate the rescue of Jugram D. Lorna from the World Government personnel stationed there.

Geography
G-4 is situated near the Red Line, guarding one of the major channels for entry and departure of Mariejois, the Holy Land and seat of the World Government. The base is the sole feature of the island beyond the fortified harbor town, forming a mighty fortress considered comparable to the likes of Marineford. To the west of the main fortress is a tower that serves as the operational base of CP3.

Navy

 * Vice Admiral Coldur
 * Rear Admiral Shingen
 * Captain Jallus
 * 1000 Navy Soldiers

World Government

 * Krauser Daelin (Deceased)

Cipher Pol (CP3 Agency)

 * Jackston Grouse
 * Slovis
 * Veram
 * Kokomasu (Deceased)
 * Krauser Sabrina (former)
 * Nesma Kailey (former)

History
G-4 was constructed with the intention to act as one of the gatehouses to the Holy Land of Mariejois. In order to comply with the demands of the Nobility, a minimum requirement of 1000 Navy Personnel was placed upon the bases garrison at all times. Cipher Pol also stationed its third agency her as an added precaution.

During the events of the Summit War, CP3 and the World Governments elite agent Krauser Daelin were able to abduct Jugram D. Lorna from the care of the Shuffle Pirates, housing her at the base with the intent to move her to Mariejois once the threat of Whitebeard had been dealt with (thus freeing up Marine personnel). However, G-4 was invaded by the Shuffle Pirates and their newly formed alliance with Winters Gage and his crew as well as a Separatist Fleet led by then Rear Admiral Jarvis Ashur.

Despite a staunch resistance offered by the Navy and the presence of the full staff of CP3 as well Krauser Daelin, the base was ultimately unable to resist the alliance, the Shuffle Pirates succeeding in their raid and rescuing Jugram D. Lorna before she could be made a tool of the World Government. Furthermore, during the raid CP3 Operative Nesma Kailey defected to join the Shuffle Pirates.

The base would suffer a second invasion six months later at the hands of the 2nd Division of the Wildbeard Pirates, let by "Deadmarch" Gewehr Genivieve. Most of the remaining, reinforced, personnel were killed and the base was largely destroyed as the Wildbeard's declaration of war on the World Government.