Mezue ahịrịokwu a: N'afọ 1807, mgbe a na-alụ Agha Peninsular (1807-14), France na Spen bịanyere aka n'akwụkwọ nkwekọrịta nzuzo nke Fontainebleau, bụ́ nke kwuru na a ga-ebuso ndị Pọtugal agha ma kewaa ha ụzọ atọ. N'otu afọ ahụ, ndị agha France nke Ọchịagha Junot na-achị banyere Portugal. Portugal rịọrọ enyemaka site n'aka England ebe, n'otu oge ahụ, ezinụlọ ndị eze Portugal hapụrụ mba ahụ gaa Brazil. N'afọ 1808, ndị agha Portuguese na ndị agha Britain nke Duke nke Wellington na-achị meriri ndị France n'Agha nke
Roliça na Vimeiro. Nke a manyere Junot ịkpa nkata maka Nkwekọrịta nke Cintra, nke dugara na mwepụ nke ndị agha France na Portugal. Ndị agha France wakporo France nke ugboro abụọ n'afọ 1809, bụ́ nke Marshal Soult duziri, ma mee ka ha laghachi azụ. Wellington kpeziri ikpebi iwulite ụzọ nchebe maka Lisbon, iji chebe megide mwakpo ọ bụla ọzọ na iji chebe ịlaghachi azụ ya na mwepụ ọ bụla ma ọ bụrụ na ndị agha France meriri ya. E wuru ebe e wusiri ike nke Feira dị ka akụkụ nke usoro nke abụọ nke Lines nke Torres Vedras. Ndị agha France nke atọ, nke Marshal André Masséna du, gara n'ihu na Lines nke Torres Vedras mana enweghị ike ịgafe ha ma mgbe ọnwa ise gachara, a manyere ha ịlaghachi azụ.