 The ultimatum was refused and the European allies intervened , the naval side of the war becoming the responsibility of Britain and Austria . Cyclops played an active role ; arriving at Beirut on 7 September 1840 to fire shells in support of the landing of Ottoman troops , attempting to capture the fort at <unk> on 11 September , landing marines and further troops at <unk> on 12 September and capturing Batroun on 15 September . On 25 September Cyclops arrived at Sidon , the main Egyptian southern division supplies depot , alongside HMS Thunderer , Gorgon , Wasp , Stromboli , Hydra , SMS <unk> ( Austrian ) and <unk> ( Ottoman ) . The ships proceeded to bombard the citadel and surrounding fort on 26 September before a force of 500 Ottoman troops were landed . The 2 @,@ 700 strong defending force continued to resist so the bombardment was resumed and reinforcements of 750 British Marines and 100 Austrian troops landed , alongside some British sailors . The fort was overrun and the entire garrison captured , Cumming being mentioned in despatches for his bravery during the action . The Admiralty rewarded him with promotion to the rank of lieutenant , dated just two days after the action . Cyclops remained in the theatre until leaving for Malta in October and saw action at <unk> , the Syrian War continued into November . 
