This report analyzes the macro environment and internal capabilities of Marks and Spencer, a multinational British retailer. It examines the impact of PESTLE factors on the organization's business strategy, including political, economic, social, technological, legal, and environmental influences. The report also assesses Marks and Spencer's internal environment using SWOT analysis, identifying strengths, weaknesses, opportunities, and threats. Furthermore, it applies Porter's Five Forces Model to evaluate the competitive forces within the retail industry, considering factors such as competition, potential entrants, supplier power, buyer power, and the threat of substitutes. Finally, the report proposes strategic planning recommendations for Marks and Spencer, drawing upon various theories and models, including generic strategies and Ansoff's matrix, to enhance its performance and gain a competitive advantage.