Kutevera Chibvumirano cheFontainebleau chakasainwa pakati peFrance neSpain muna Gumiguru 1807, icho chakaronga kupindirwa uye kugoverwa kwakazotevera kwenzvimbo yePortugal muumambo hutatu, mauto eFrance achitungamirirwa naGeneral Junot akapinda muPortugal, iyo yakakumbira rutsigiro kubva kuBritain. Nokudaro, muna July 1808 mauto aitungamirirwa naDuke weWellington akasvika muPortugal, akafambira mberi akananga kuLisbon ndokukunda mauto eFrance paHondo dzeRoliça
uye Vimeiro, vachimanikidza Junot kuzviramba. Muna March 1809, Marshal Soult akatungamirira boka idzva revaFrench rakaenda kumaodzanyemba kuguta rePorto risati radzoswa nemauto echiPutukezi neBritish ndokumanikidzwa kudzokera.