The "right hook" in the mountains had also been a costly failure and it was decided to launch twin attacks from the north along the Rapido valley: one towards the fortified Cassino town and the other towards Monastery Hill.
Højre-hooket i bjergene havde også været en dyr fejltagelse, og det blev besluttet at indlede to angreb fra nord langs Rapidodalen: ét mod den befæstede Cassino by og ét mod klosterbakken.