The concept of Strategic Culture was developed during the Cold War years as a tool to analyse the nuclear policies of the Soviet Union and the United States, in an effort to assess the likelihood of their utilising their nuclear capabilities. Strategic Culture provides a useful lens through which we may understand the context, outlook and behaviour of states, shedding light on the way they perceive the international community and their role within it. As the Cold War came to an end, the focus of Strategic Culture literature shifted from the nuclear bipolarity that characterised U.S.-Soviet relations, to focus on other states and issue areas that dominated the international agenda within the New World Order. This thesis seeks to return to the original tenets of Strategic Culture, bringing attention back to the initial remits of this area of study, that is, the nuclear strategic cultures of the U.S.A. and Russia. Further to identifying the strategic cultures of the United States and Russia, this research questions whether these have been impacted by the change in international order brought on by the end of the Cold War. This work will also question whether nuclear weapons contorted their respective strategic cultures, or whether their strategic cultures were insulated from the impact of nuclear weapons. It will also assess whether the differences in strategic cultures have brought about differences in nuclear policy.