sentences:  It then embarked for the Arabian Peninsula in October 1820 and saw action in operations against Omani pirates at Jalan Bani Bu Ali in March 1821.The regiment took part in the Conquest of Aden in 1839 and was then renumbered as the 1st Bombay (European) Regiment later in the year (on the creation of the 2nd Bombay (European) Regiment), and designated the 1st Bombay (European) Fusiliers in 1844.It took part in the Siege of Multan in April 1848 and the Battle of Gujrat in February 1849 during the Second Anglo-Sikh War.