Judging by the reaction of the brown-haired flunky of Garma when he tried to grab Char,
Char blasted him with either something akin to the Conqueror's Haki (a concept from One Piece), Killing Intent or both. He then flung him away with Armament Haki (also a concept from One Piece).Char is Mineva's godfather
Char is the reason Dozle and Zenna met and fell for each other, and Dozle knows.The Origin is a retelling of the One Year War made by the Earth Federation as anti-Zeon propaganda.
It would explain why Garma, Kycilia and especially Char are depicted as much worse people than they are in the original Mobile Suit Gundam. Presumably after Char's whole counterattack there was a big push by the Federation to delegitimize him and turn people off from following his example.