Bydd y Prif Weinidog hefyd yn diolch i'r bobl o bentref bach Mametz a Chymdeithas y Ffrynt Orllewinol am ofalu am y gofeb siâp draig sy'n 9 troedfedd o uchder ers iddi gael ei chodi ym 1987 i anrhydeddu dynion Cymru a fu'n ymladd yn ddewr am bum diwrnod er mwyn ail-gipio y goedwig fwyaf ar faes brwydr y Somme.
The First Minister will also thank the people from the small village of Mametz and the Western Front Association for looking after the 9ft dragon memorial since it was erected in 1987 to honour the Welsh men who fought bravely for five days to recapture the largest woodland on the Somme battlefront.