Original sentence: 400: Gwanggaeto sent 50,000 soldiers to defend Silla.As Silla was a loyal ally of Goguryeo, Gwanggaeto agreed to help them.Gwanggaeto gained 58 towns and 700 villages, and returned home with hostages, including a Baekje prince and several ministers.Gwanggaeto led his troops and defeated the Wa forces in the vicinity of Pyongyang.In Pyongyang, Gwanggaeto was greeted by the Sillan envoy Silseong who notified him that Baekje and Wa troops were crossing the border to invade Silla, and requested Goguryeo's aid.The Wa army was defeated and many Wa soldiers were killed
Edited sentence: 400: Gwanggaeto sent 50,000 soldiers to save Silla.As Silla was a loyal subject of Goguryeo, Gwanggaeto agreed to save them.Gwanggaeto gained 58 towns and 700 villages, and triumphantly returned home with hostages including a Baekje prince and several ministers.Gwanggaeto led his troops and demolished the Wa forces in the vicinity of Pyongyang.In Pyongyang, Gwanggaeto was greeted by the Sillan envoy Silseong who notified him that Baekje and Wa troops were crossing the border to invade Silla, and requested Goguryeo for aid.The Wa army was utterly defeated and countless numbers of Wa soldiers were killed