This report provides an in-depth analysis of strategic management tools, including PESTLE analysis, SWOT analysis, and Porter's Five Forces framework. The study utilizes Wesfarmers, an Australian conglomerate, as a case study to illustrate the practical application of these tools. The report examines how Wesfarmers uses these strategic frameworks to analyze its external and internal environments, particularly when expanding into new markets. The PESTLE analysis covers political, economic, social, technological, legal, and environmental factors influencing Wesfarmers. The report also assesses the competitive landscape using Porter's Five Forces, identifying threats from new entrants, suppliers, buyers, competitors, and substitutes. Furthermore, a SWOT analysis is conducted to evaluate Wesfarmers' strengths, weaknesses, opportunities, and threats. The conclusion emphasizes the importance of these strategic models in organizational decision-making and environmental evaluation, highlighting their significance for businesses like Wesfarmers.