Complex sentence: Many ships, including four frigates, were lost in these missions and few reached their destinations among these failures was Troude's expedition to the Caribbean, which arrived in April 1809 at the Îles des Saintes.
Split into simpler sentences: Many ships, including four frigates, were lost in these missions and few reached their destinations successfully. Among these failed attempts was Troude's expedition to the Caribbean, which arrived in April 1809 at the Îles des Saintes.