Britain's refusal to make peace with Napoleon caused him to embark on a trade war to close Europe to British trade. Portugal would not agree to join the pact and Napoleon proposed and pushed through a joint Spanish French invasion of Portugal. [The Spanish played very little part in this.] After some political wrangling Napoleon's next decision was to add Spain and Portugal to the French Empire. He occupied Spain and attempted to occupy Portugal. There then followed a joint British, Portuguese and Spanish campaign to push the French out of the Iberian Peninsular.

• Alcolea 07 June 1808
• Zaragoza 15 June 1808
• Saragossa 1st siege 15 June 1808 - 17 August 1808
• Girona [1] 20 June 1808
• Valencia 28 June 1808
• Rosas 11 July 1808
• Valladolid 12 July 1808
• Medina del Rioseco 14 July 1808
• Medina de Rio Seco 14 July 1808
• Saragosa First Siege 15 July 1808 - 14 August 1808
• Bailén 21 July 1808 - 22 July 1808
• Girona 2 24 July 1808 - 16 August 1808
• Evora 29 July 1808
• Roliça 17 August 1808
• Vimeiro 21 August 1808
• Zornoza 30 October 1808
• Valmaseda 05 November 1808
• Rosas 07 November 1808 - 05 December 1808
• Espinosa de los Monteros 10 November 1808 - 11 November 1808
• Gamonal 10 November 1808
• Tudela 23 November 1808
• Somosierra 29 November 1808 - 30 November 1808
• Rueda 12 December 1808
• Cardedeu 16 December 1808
• Sahagun 20 December 1808
• Saragossa, the 2nd seige 20 December 1808 - 20 February 1809
• Molins del Rey 21 December 1808
• Benavente 29 December 1808
• Mansilla de las Mulas 30 December 1808
• Cacabellos [Prieros] 03 January 1809
• Lugo 07 January 1809
• Uclés 13 January 1809
• Coruña [La] 16 January 1809
• Valls 25 February 1809
• La Trepa 06 March 1809
• Mesa de Ibor 17 March 1809
• Villafranca 17 March 1809
• Povoa de Lanhoso 20 March 1809
• Miajadas 21 March 1809
• Vigo 27 March 1809
• Ciudad Real 27 March 1809
• Medellin 29 March 1809
• Oporto 29 March 1809
• Amarante 18 April 1809 - 03 May 1809
• Grijon 11 May 1809
• Oporto 12 May 1809
• Monzon 16 May 1809 - 19 May 1809
• Santiago de Compostela 22 May 1809
• Alcañiz 23 May 1809
• Gerona, the seige of 04 June 1809 - 12 December 1809
• Girona 06 June 1809 - 10 December 1809
• Santander 10 June 1809 - 12 June 1809
• Maria de Huerve 15 June 1809
• Belchite 18 June 1809
• Talavera 27 July 1809 - 29 July 1809
• Arzobispo [El Puente] 08 August 1809
• Almonacid de Toledo 11 August 1809
• Puerto de Baños 12 August 1809
• Tamames 18 October 1809
• Ocaña 18 November 1809
• Alba des Tormes 28 November 1809
• Hostalrich 16 January 1810 - 12 May 1810
• Granollers 21 January 1810
• Siege of Cadiz 05 February 1810 - 24 August 1812
• Vic 20 February 1810
• Astorga 21 March 1810 - 22 April 1810
• Manresa 21 March 1810 - 05 April 1810
• Margalef 23 April 1810
• Lleida 29 April 1810 - 13 May 1810
• Mequinenza 15 May 1810 - 05 June 1810
• Ciudad Rodrigo, French siege of 25 June 1810 - 09 July 1810
• Coa River 24 July 1810
• Almeida [French siege] 25 July 1810 - 27 August 1810
• Villagarcia 11 August 1810
• Palamos, St Feliu, La Bisbal 14 September 1810
• Busaco 27 September 1810
• Pombal [1] 05 October 1810
• Coimbra 06 October 1810
• Torres Vedras 11 October 1810 - 14 November 1810
• Fuengirola 13 October 1810
• Sobral 14 October 1810
• Baza 04 November 1810
• Tortosa 16 December 1810 - 02 January 1811
• Olivenza 11 January 1811 - 23 January 1811
• L'Illa 15 January 1811
• Badajoz, French siege 26 January 1811 - 09 March 1811
• Rio Gebora 19 February 1811
• Barrosa 05 March 1811
• Pombal [2] 11 March 1811
• Redinha 12 March 1811
• Albuquerque 15 March 1811
• Campo Mayor [1] 15 March 1811 - 21 March 1811
• Foz do Arouce 15 March 1811
• Campo Mayor [2] 25 March 1811
• Sabugal 03 April 1811
• Almeida 04 April 1811 - 11 May 1811
• Figueras [1] 10 April 1811
• Figueras [2] 03 May 1811
• Fuentes de Oñoro 03 May 1811 - 04 May 1811
• Figueras [3] 04 May 1811 - 19 August 1811
• Tarragona 05 May 1811 - 29 June 1811
• Badajoz, First British siege 07 May 1811 - 12 May 1811
• Albuera 16 May 1811
• Badajoz, Second British siege 18 May 1811 - 10 June 1811
• Usagre 25 May 1811
• Elvas 22 June 1811
• Cogorderos 23 June 1811
• Zujar 09 August 1811
• El Bodon 25 September 1811
• Carpio 25 September 1811
• Aldea de Ponte 28 September 1811
• Arroyo dos Molinos 28 October 1811
• Valencia 03 November 1811 - 09 January 1812
• Tarifa 19 December 1811 - 05 January 1812
• Fuente del Maestre 03 January 1812
• Ciudad Rodrigo, British seige of 07 January 1812 - 19 January 1812
• Alicante 16 January 1812
• Col de Balaguer 18 January 1812
• Peniscola 20 January 1812 - 02 February 1812
• Altafalla 24 January 1812
• Roda 05 March 1812
• Badajoz, third British siege 16 March 1812 - 07 April 1812
• Puerto de Arlaban 09 April 1812
• Villagarcia 11 April 1812
• Guarda 14 April 1812
• Almáraz 18 May 1812
• Cadiz 01 June 1812
• Maguilla 11 June 1812
• Salamanca [Siege] 17 June 1812 - 27 June 1812
• Castalla 21 July 1812
• Salamanca 22 July 1812
• Garcia Hernandez 23 July 1812
• Las Rozas 11 August 1812
• Retiro 13 August 1812
• Sevilla 28 August 1812
• Burgos [Failed siege] 18 September 1812 - 21 October 1812
• Venta del Pozo 23 October 1812
• Tordesillas 28 October 1812
• Tajuna 30 October 1812
• Alba de Tormes 10 November 1812 - 11 November 1812
• Matilla 16 November 1812
• Tiebas 08 February 1813
• Béjar 20 February 1813
• Lerin 31 March 1813
• Yecla 11 April 1813
• Biar 12 April 1813
• Castalla 13 April 1813
• Castro Urdiales 04 May 1813 - 12 May 1813
• Morales 02 June 1813
• Tarragona 03 June 1813 - 11 June 1813
• Osma 18 June 1813
• San Millan 18 June 1813
• Vitoria 21 June 1813
• Tolosa 25 June 1813
• San Sebastian 28 June 1813 - 08 September 1813
• Pamplona 30 June 1813 - 31 October 1813
• San Sebastián 07 July 1813 - 25 July 1813
• Maya Pass 25 July 1813
• Roncesvalles Pass 25 July 1813
• Roncesvalles 25 July 1813
• Pamplona 26 July 1813 - 31 October 1813
• Sorauren Part 1 28 July 1813
• Sorauren Part 2 30 July 1813
• Yanzi 01 August 1813
• Echlar 02 August 1813
• Vera 31 August 1813 - 01 September 1813
• San Marcial [1813] 31 August 1813
• Villafranca 13 September 1813
• Ordal 13 September 1813
• Bidassoa and Rhune 07 October 1813
• Vera, Second Battle 07 October 1813 - 08 October 1813
• Ste Barbe Redoubt 12 October 1813
• Nivelle 10 November 1813
• Nive 09 December 1813 - 13 December 1813
• St. Pierre 13 December 1813
• Garris 15 February 1814
• Bayonne 26 February 1814 - 26 April 1814
• Orthez 27 February 1814
• Aire-sur-l'Adour 02 March 1814
• Tarbes 20 March 1814
• Etauliers 06 April 1814
• Toulouse 10 April 1814 - 11 April 1814
• Bayonne sortie 14 April 1814