The 1st Battalion had been garrisoned in the West Indies from 1790 and left in 1797. As such, Souper had spent two years serving there when he joined the 2nd Battalion in the Mediterranean. Based in this timing, we understand he would have fought with them in the Battle of Egmont op Zee in the 1799 Anglo-Russian invasion of Holland, and in the 1801 Egyptian campaign at the Battle of Aboukir and the Battle of Alexandria.