Why did forest mars decide to create the candy m and ms?

Forrest Mars, along with Bruce Murrie, created M&M's during World War II as a solution to the problem of chocolate melting in soldiers' hands. They developed a candy-coated chocolate that would withstand heat, making it a practical and portable treat for troops. The collaboration between Mars and Murrie, who was the son of Hershey's founder, combined their expertise to innovate a product that became immensely popular and a staple in the candy market.