Notice how we didn’t hear of anything like warlord during the entire Roger and Rocks era. And in the latest chapter it’s revealed that Rocks had to CONVINCE the government to hire him to take out the Beehive Island pirates. The government didn’t have any mechanism in place regarding hiring pirates. Rocks invented it.
I think the warlord system was explicitly created only when the Yonko system was created, about 20 years ago after Roger died. Like there was no need for Warlords until the Great pirate era when piracy shot up and the Yonko formed as Empires on the sea. That’s when the Government remembered that they did one time hire other pirates to deal with pirates before when Rocks brought them this idea.
I think the warlord system was explicitly created only when the Yonko system was created, about 20 years ago after Roger died. Like there was no need for Warlords until the Great pirate era when piracy shot up and the Yonko formed as Empires on the sea. That’s when the Government remembered that they did one time hire other pirates to deal with pirates before when Rocks brought them this idea.