The Pirate Guerrilla Force was not a guerrilla force formed by pirates, but one that hunted pirates.
In the original timeline, after Zephyr finally lost heart and left the Navy, he led those willing to follow him in forming such an organization, striking at pirates throughout the New World.
Roger had ushered in a terrible age. There were few adventurers whose sole goal was the Great Treasure; far more were villains whose swelling ambitions used the Great Treasure as an excuse to set sail.
And among those villains, there was no shortage of hotheaded fools.
The Navy of the Four Seas was worlds apart from the Navy of the Grand Line, both in strength and quality. Those Marines would eliminate a batch of weaker pirates.
Then Reverse Mountain's terrain and the Grand Line's treacherous environment would eliminate a second batch. Those who could continue sailing usually developed a mysterious confidence, believing themselves invincible.
By then, they became even more lawless. No matter what title stood before them, they saw it only as a stepping stone on their path to success.
Only blood could make those people understand where they had truly entered.
The security force was responsible for internal defense, while most pirates would be intercepted in advance by the Coastal Defense Cannons.
Piltover's Coastal Defense Cannons were not outdated artillery. Their larger caliber and longer range meant that most pirates would be destroyed at sea before they even had a chance to fire back.
Pirates who made it onto the island to cause trouble could also be dealt with promptly. The security force were soldiers too; they needed real combat experience.
The rampant pirates had even begun affecting nearby merchant vessels. Combined with the prestige gained by fighting pirates, preparations for the Pirate Guerrilla Force were placed on the