Bushehr was used as a base by the British Royal Navy in the late 18th century. In the 19th century, Bushehr became an important commercial port. It was occupied by British forces in 1856, during the Anglo-Persian War of 1856–1857. Bushehr surrendered to the British on 9 December 1856. It was occupied again by the British in 1915, the second time due to German intrigue, most notably by Wilhelm Wassmuss and Rais Ali Delvari.In World War I, homeland was neutral.
It was occupied by British forces in 1856, during the Anglo-Persian War of 1856–1857. Bushehr surrendered to the British on 9 December 1856. It was occupied again by the British in 1915, the second time due to German intrigue, Rais Ali Delvari (independence fighter and anti-British colonialism activist) and Wassmuss of the Germany Intelligence Bureau were busy formulating a general Anti-British uprising in Persia.
