The 1807-1814 war in the Iberian Peninsula was one of the most significant and influential campaigns of the Napoleonic Wars. Arising from Napoleon's strategic necessity to impose his rule over Portugal and Spain, it evolved into a constant drain on his resources. Sir Charles Oman's 7-volume history of the campaign is an unrivalled and essential work. His extensive use and analysis of French, Spanish, Portuguese and British participants' accounts and archival material, together with his own inspection of the battlefields, provides a comprehensive and balanced account of this most important episode in Napoleonic military history. Sir Charles Oman's classic 7-volume History of the Peninsular War is one of the most important histories of the period ever written. The work of a brilliant historian and writer, it presents a large amount of detailed and valuable information in a very readable style.