Complex sentence: In April 1860 Page left Cochinchina to join Charner at Canton, and the defence of Saigon was entrusted to "capitaine de vaisseau" d'Ariès.
Split into simpler sentences: In April 1860 Page left Cochinchina to join Charner at Canton. The defence of Saigon was entrusted to "capitaine de vaisseau" d'Ariès.