the D are described as the natural enemy of the Celestial Dragons, the Celestial dragon also believe that the D will cause another storm in the world
so what do they mean by that?
I think the answer is found by looking in what role the characters who have D in their name play or played, and how their actions affected the plot
the one trait characters with the D in their name share is that they all caused instability and chaos in the world, directly or indirectly
starting with Rock, gathered the worst criminals of the world, and basically declared war against the WG
Roger started the great age of piracy, he probably caused the most chaos out of all the D's with this
Dragon, currently planning to dethrone the goverment
Luffy, the main reason for the fall of the shichibukai system, the power balance that the Goverment established to maintain peace is destroyed mainly because of him which is causing so much chaos currently
Law, his speech to DD in Punk hazard say it all, DD defeat is causing the throne wars and law knew that, he's behind the plan of taking him down, him and luffy are the main reason the throne war is happening so suddenly while before everyone was still busy growing their army and weapons
Teach and Ace, Marineford war happened because of their confrontation and they pretty much caused the war to happen
as we can see, most of the instability and chaos that is happening in the OP world right now was caused by the D clan, thats what the Celestial Dragons mean by the D causing a storm
from the Celestial dragon side, we can see that they care a lot about Order and maintaining stability and peace in the world, most of the gorosei conversations is about maintaining the balance of power, which was the reason the world was at peace, the gorosei care the most about maintaining the balance therefore maintaining peace, and the characters that destroyed the Order they established are from the D clan
DD a celestial dragon, despite having similar goal to some characters from the D clan was actually one of the reasons wars and chaos hasn't happened yet, he say it himself, he was feeding the beasts of the world and keeping them busy, and his downfall is causing the throne war, in a way DD as a CD was making the new world stable, but the D his natural enemy ended his reign and caused chaos
so far the only exception is Garp, there's a lot of mystery around him still, we can't conclude that he never did something that caused chaos , even if he never did one exception can be explained away by Oda when we know more about him
so what do they mean by that?
I think the answer is found by looking in what role the characters who have D in their name play or played, and how their actions affected the plot
the one trait characters with the D in their name share is that they all caused instability and chaos in the world, directly or indirectly
starting with Rock, gathered the worst criminals of the world, and basically declared war against the WG
Roger started the great age of piracy, he probably caused the most chaos out of all the D's with this
Dragon, currently planning to dethrone the goverment
Luffy, the main reason for the fall of the shichibukai system, the power balance that the Goverment established to maintain peace is destroyed mainly because of him which is causing so much chaos currently
Law, his speech to DD in Punk hazard say it all, DD defeat is causing the throne wars and law knew that, he's behind the plan of taking him down, him and luffy are the main reason the throne war is happening so suddenly while before everyone was still busy growing their army and weapons
Teach and Ace, Marineford war happened because of their confrontation and they pretty much caused the war to happen
as we can see, most of the instability and chaos that is happening in the OP world right now was caused by the D clan, thats what the Celestial Dragons mean by the D causing a storm
from the Celestial dragon side, we can see that they care a lot about Order and maintaining stability and peace in the world, most of the gorosei conversations is about maintaining the balance of power, which was the reason the world was at peace, the gorosei care the most about maintaining the balance therefore maintaining peace, and the characters that destroyed the Order they established are from the D clan
DD a celestial dragon, despite having similar goal to some characters from the D clan was actually one of the reasons wars and chaos hasn't happened yet, he say it himself, he was feeding the beasts of the world and keeping them busy, and his downfall is causing the throne war, in a way DD as a CD was making the new world stable, but the D his natural enemy ended his reign and caused chaos
so far the only exception is Garp, there's a lot of mystery around him still, we can't conclude that he never did something that caused chaos , even if he never did one exception can be explained away by Oda when we know more about him