Study of foreign policy of any country is an important topic in political field and studies, as it help us to enhance knowledge about political policies and behaviour of the leader of any country. Political science, in broad sense is the study of political behaviour, its influence on people and its effect on the other countries of the world. With change in political leader, political policies and behaviour change. Every leader has its own way of dealing with various situation and matter, and this behaviour affects the political relation of country with other countries of the world. In todays era it is important to maintain balance of power and it is an era of cooperation, thus to move towards the objective of world peace and globalization, it is ideal to maintain friendly relation with all the countries of the world. America owns the most important position in the world politics and sudden changes in America's foreign policy under leadership of Donald Trump (successful businessman, with no political background) attract the attention of all.? Although, it is not possible to study and observe foreign policy precisely before the completion of Trump's work tenure as policies are changing as required but still this book is an attempt to do so keeping some change constant over time. It could be noted that with the completion of this book relation with various countries (as studies in this book) might change and policies might take a new turn, so this book is Trump's policy in broad sense.