Complex sentence: In October 1798 a French fleet, carrying 5000 men, sailed from Brest intending to invade Ireland, the plan was frustrated in no small part due to the squadron under his command.
Split into simpler sentences: In October 1798 a French fleet, carrying 5000 men, sailed from Brest intending to invade Ireland. The plan was frustrated in no small part due to the squadron under his command.