Complex sentence: Bacon was the first captain of the battleship "Dreadnought" and was closely associated with Fisher, and public revelation of exchanges between the two led to what was tantamount to Bacon's dismissal from the service in 1909.
Split into simpler sentences: Bacon was the first captain of the battleship "Dreadnought". He was closely associated with Fisher, and public revelation of exchanges between the two led to what was tantamount to Bacon's dismissal from the service in 1909.