Rubuta ci gaba don wannan sakin layi - Matashi Edward ya shiga rundunar sojan ruwa yana da shekaru 12 a cikin bindigogi 60. An aika da "Superb" zuwa West Indies tare da Admiral Francis Hosier. Boscawen ya zauna tare da "Superb" na tsawon shekaru uku a lokacin yakin Anglo-Spanish
Ka yi haƙuri. Daga bisani an sake sanya shi zuwa,, kuma a karkashin Admiral Sir Charles Wager kuma yana cikin "Namur" lokacin da ta shiga cikin Cadiz da Livorno bayan yarjejeniyar Seville wanda ya kawo karshen tashin hankali tsakanin Birtaniya da Spain. A ranar 25 ga Mayu, 1732 Boscawen ya ci gaba da zama Laftanar kuma a watan Agusta na wannan shekarar ya koma tsohuwar jirginsa na 44-gun na hudu "Hector" a cikin Bahar Rum. Ya kasance tare da ita har zuwa ranar 16 ga Oktoba 1735 lokacin da aka inganta shi zuwa 70-gun. A ranar 12 ga Maris, 1736, Admiral Sir John Norris ya ba Boscawen matsayi na wucin gadi na 50-gun. Kwamitin Admiralty ya tabbatar da haɓakarsa. A watan Yuni 1738 an ba Boscawen umurnin, karamin kashi na shida na bindigogi 20. An umurce shi da ya bi Admiral Edward Vernon zuwa West Indies a shirye-shiryen yaki da Spain.