Each year, the children and young people of Wales raise their voice through the Urdd's Peace and Goodwill Message to bring attention to a particular major global topic.
Bob blwyddyn, mae plant a phobl ifanc Cymru yn codi eu llais drwy Neges Heddwch ac Ewyllys Da yr Urdd i dynnu sylw at bwnc byd-eang pwysig penodol.