Rubuta ci gaba don wannan sakin layi - Rashin amincewa da Portugal don bin Tsarin Tsarin Ƙasar ya haifar da wani aikin azabtarwa na Faransa a ƙarshen 1807. Wannan yaƙin ya zama tushen Yaƙin Peninsular, wanda zai ɗauki shekaru shida kuma ya lalata Daular Faransa na mahimman albarkatu da ma'aikata. Faransawa sun yi ƙoƙarin mamaye Spain a 1808, amma jerin bala'o'i sun sa Napoleon ya shiga tsakani da kansa daga baya a cikin shekarar. Sojoji 125,000 na "Grande Armée" sun ci gaba, suka kama sansanin Burgos, suka share hanyar zuwa Madrid a Yaƙin Somosierra
, da kuma tilasta sojojin Spain su koma baya. Daga nan sai suka yi yaƙi da sojojin Birtaniya na Janar Sir John Moore, wanda ya sa Birtaniya ta janye daga yankin Iberian Peninsula bayan wani aikin jaruntaka a yakin Corunna a ranar 16 ga Janairu, 1809. Yaƙin ya yi nasara, amma har yanzu zai ɗauki lokaci kafin Faransawa su sami damar mamaye Kudancin Spain.