Complex sentence: In 1740 the Anglo-Spanish "War of Jenkins' Ear" broke out and Great Britain was anxious to enlist the Miskito on their side and to use their enmity to Spain as a means to conduct raids against Spanish possessions in Central America.
Split into simpler sentences: In 1740 the Anglo-Spanish "War of Jenkins'Ear" broke out, and Great Britain was anxious to enlist the Miskito on their side. They wanted to take advantage of the people's enmity to Spain as a means to conduct raids against Spanish possessions in Central America.