This report delves into the realm of international business, with a specific focus on strategic alliances and their role in foreign market expansion. The report begins by defining international business and the concept of strategic alliances, emphasizing their importance in enhancing competitiveness and mitigating risks through collaborations. It then provides a literature review that defines the use of international strategic alliance in foreign market expansion. The report analyzes the motivations behind forming these alliances, exploring factors such as market share growth, economies of scale, and access to resources. Furthermore, it examines the benefits and challenges associated with such alliances, particularly within the context of the airline industry, using British Airways and its alliance with Oneworld as a case study. The report also provides recommendations for companies aiming to implement successful international business strategies and concludes with a summary of the key findings and insights.