The document analyzes the Subway sandwich chain. It discusses Subway's origins as an entrepreneurial startup by Fred DeLuca and Dr. Peter Buck in 1965. It then covers Subway's mission, social responsibility initiatives, and strengths like its large store count and low startup costs. The document also examines Subway's weaknesses, opportunities, threats, differentiation strategy as a healthy fast food option, extensive product safety controls, and ultimate success as the world's largest restaurant chain.