Kammala wannan jumla: Da barkewar Yaƙin Duniya na II, an ba Villiers mukamin Laftanar a cikin Royal Naval Reserve a 1940. An sanya shi a cikin jerin gwano na 24 LCI ((L)'s, ko Landing craft, Infantry (Babban). An umurce shi da ya isar da su a fadin Atlantic, tare da asarar kashi 40 cikin 100 da ake tsammani, Villiers ya sami duka amma daya a cikin aminci. Ya umurci "flights" na LCI ((L) ta a kan D-Day a cikin Battle of Normandy, da
mamayewar Sicily, da yakin Burma a Gabas ta Tsakiya. A karshen yakin, Villiers ya ci gaba da zama kwamandan kuma ya ba da lambar yabo ta Birtaniya.