The attackers were Poisonous Arrow mercenaries, belonging to the Arrow Military registered in Madagascar.
While on this topic, the company certainly had previous conflicts with Xin. Country F had hired its military operations to take military action against Xin in an open attempt to kidnap Jiang Chen. Although the team dispatched to Coro Island was wiped out on the island, Jiang Chen later dismembered the reckless nation through Moro's Liberation Movement, but for this military company in Africa, he had never been too concerned about them.
This time, they were employed by the Freemasonry and attacked Jiang Chen and the others in Antarctica. Five Sea Lions were killed and the remaining five were also suffered varying degrees of injuries. However, the blood debt was already paid.
After interrogating information from several prisoners with the truth serum, Jiang Chen ended their misery.