Complex sentence: They took the opportunity to order Bernardo de Galvez, Governor of Louisiana, on an expedition east to retake Florida and captured Mobile during the Battle of Fort Charlotte in 1780 as part of this campaign.
Split into simpler sentences: They took the opportunity to order Bernardo de Galvez, Governor of Louisiana, on an expedition east to retake Florida. He captured Mobile during the Battle of Fort Charlotte in 1780, as part of this campaign.