User blog comment:15sok/What is the Holy War?/@comment-4547267-20130607174025/@comment-4556650-20130608030052

Indeed, a very interesting theory.

I think that there is a mastermind behind Hendricksen, which Dreyfus does not know about. About the traitor among the Deadly Sins, it is not very likely to be any of the already appeared sins. However, I think that it is possible that Meliodas is the traitor but he lost his memory (the traitor might also have been reluctant to betray his companions - maybe he was forced to betray them).

For the Holy War, it might have relation to the war between the Holy Maiden Clan and the Demon Clan.