Rubuta ci gaba don wannan sakin layi - A farkon Yakin Peninsular, Faransa da Spain sun rattaba hannu kan Yarjejeniyar Fontainebleau a watan Oktoba 1807. Wannan ya ba da damar mamayewa da kuma rarraba yankin Fotigal zuwa masarautu uku. Bayan wannan, sojojin Faransa karkashin jagorancin Janar Junot sun shiga Portugal, wanda ya nemi taimako daga Birtaniya. A watan Yuli na 1808 sojojin da Duke na Wellington ya ba da umurni, a lokacin da ake kira Arthur Wellesley, suka sauka a Portugal kuma suka ci sojojin Faransa a Yaƙin Roliça
da kuma Vimeiro. Wannan ya tilasta wa Junot yin shawarwari game da Yarjejeniyar Cintra, wanda ya haifar da kwashe sojojin Faransa daga Fotigal. A watan Maris na 1809, Marshal Soult ya jagoranci wani sabon tafiyar Faransa wanda ya ci gaba zuwa kudu zuwa birnin Porto kafin sojojin Portugal da Birtaniya suka kori su kuma suka janye. Bayan wannan koma baya, sojojin Wellesley sun sake kayar da Faransanci a yakin Talavera.