A year later, Richard the Lionheart, one of the leaders of the Third Crusade, won back Akko (Acre) but failed to regain Jerusalem.
Richard the Lionheart lost Jerusalem because he ran out of troops.
mnli hypothesis: Richard the Lionheart lost Jerusalem because he ran out of troops. premise: A year later, Richard the Lionheart, one of the leaders of the Third Crusade, won back Akko (Acre) but failed to regain Jerusalem.