Why Alfred the great was included in worlds greatest military leaders?

Alfred the Great is regarded as one of the world's greatest military leaders due to his successful defense of England against Viking invasions in the late 9th century. He implemented innovative military strategies, including the use of fortified towns and a navy, which significantly enhanced his forces' effectiveness. Additionally, his ability to unite various Anglo-Saxon kingdoms under a common cause fostered a sense of national identity. His legacy as a military commander is complemented by his contributions to education and legal reform.