Complex sentence: During the Peninsular War, Badajoz was unsuccessfully attacked by the French in 1808 and 1809; but on March 10,1811, the Spanish commander, José Imaz, was bribed into surrendering to a French force under Marshal Soult.
Split into simpler sentences: During the Peninsular War, Badajoz was unsuccessfully attacked by the French in 1808 and 1809. However, on March 10,1811, the Spanish commander, José Imaz, was bribed into surrendering to a French force under Marshal Soult.