This paper delves into the contemporary relevance of Prophet Muhammad's teachings on neighborhood (Jar/Jeeran) within the framework of modern international relations. In today's interconnected world, global interactions are shaped by evolving norms and facilitated by advancements in transportation and communication technologies. This has led to the emergence of a global society or "global village," fostering increased people-to-people contact. Against this backdrop, the Islamic principle of Jar, emphasizing moral responsibilities and ethics towards neighbors, warrants analysis. Prophet Muhammad advocated for fostering positive relationships with neighbors regardless of their religious or ethnic background, emphasizing protection and providing financial and food assistance as examples of Islamic ethics. This paper seeks to elucidate the concept of Jar within the context of contemporary international society and explores the application of Islamic ethics towards neighbors in modern international relations.