We all know of the 3 great powers, the marines, the warlords and the Yonko. I am going to be focusing on the first, the marines; more specifically their hidden power. I am not talking about CP 0 or any other of the CPs. I think that the marines have a secret power none of us know about. I think that if the known visible and behind the scenes powers of the marines were to fight against 2 Yonko with their crews they would put up a good fight and I could see the battle ending up like Punk Hazard's battle with the Yonko slightly edging out. I think the marines have some secret leverage apart from CP 0, like a tactical team of like 5 Yonko commander level members with a leader who is at Yonko / fleet admiral level that they keep on the "admiral team" just because of their danger as a crew and the leverage they give. I think this could also be a fictitious crew that info about could be spread by the CPs and they do not actually exist but just the fact that this all powerful group could exist and this is why the Yonko don't team up and try to attack the marines. This is just a speculation and I would like to hear any of your opinions on this!