What is nathan algren?

Nathan Algren is a fictional character portrayed by Tom Cruise in the 2003 American epic war film "The Last Samurai". He is a decorated American Civil War veteran who is hired by the Japanese emperor to train the country's first western-style army to suppress a rebellion by samurai warriors. Algren clashes with traditional Japanese culture and eventually becomes sympathetic to the samurai cause, leading him to join them in their fight against the imperial army. Algren is depicted as a skilled warrior with a troubled past, struggling to find meaning and redemption in his life.