Complex sentence: Promoted to captain on 30 June 1905, he took up command of the cruiser in the Atlantic Fleet in 1908 before going on to be Inspecting Captain of Submarines in 1910 and commodore of the Submarine Service in 1912.
Split into simpler sentences: Promoted to captain on 30 June 1905, he took up command of the cruiser in the Atlantic Fleet in 1908. He went on to be Inspecting Captain of Submarines in 1910 and commodore of the Submarine Service in 1912.