This article provides a detailed analysis of the external and internal factors affecting Decathlon's business operations. It includes a PESTLE analysis to identify the positive and negative impacts of external factors on the sports retail market, a SWOT analysis to explore the internal strengths and weaknesses of Decathlon, and a critical analysis of both external and internal factors to determine whether Decathlon should proceed with their expansion plan. The article also discusses the impact of political, economic, social, technological, environmental, and legal factors on Decathlon's business operations.