In June 1794 the regiment embarked for Flanders for service in the French Revolutionary Wars. The regiment returned to England in 1795 but then embarked for the West Indies later in the year where it helped suppress an insurrection by caribs on Saint Vincent in 1796. A second battalion was raised in May 1800 to increase the strength of the regiment. Both battalions took part in the unsuccessful Ferrol Expedition in August 1800 and the subsequent equally unsuccessful attack on Cádiz in October 1800. Both battalions then embarked for Egypt for service in the French campaign in Egypt and Syria. They saw action at the Battle of Abukir in March 1801, the Battle of Alexandria later that month and the Siege of Cairo in June 1801. The 1st battalion also took part in the Siege of Alexandria where it encountered fierce opposition at Fort Marabout in August 1801: the battalion eventually carried out a successful assault on the fort. The battalions amalgamated again in May 1802 and the regiment moved to Gibraltar in 1803.