US foreign policy in South Asia has been driven by the geopolitical realities in the region. The need for maintaining global hegemony and influence has always pushed the US towards seeking better ties with important South Asian countries, especially India and Pakistan. US relations with South Asia have always been termed controversial, unstable and uncertain. Although, both India and Pakistan have been under the careful eye of Washington, the Cold War period was marked by a US tilt towards Pakistan, which was due to its ongoing policy of Containment at that time. However, the end of the Cold War marked the beginning of another era, in which the US began to tilt towards India, thus putting Pakistan on the backburner. The 9/11 attacks changed much for India and Pakistan, and the US, once again started wooing Pakistan, while simultaneously pursuing a strong and robust relationship with India. The comparison makes for an interesting reading, which this book aims to explore in the light of important developments.