The document summarizes the history of Pakistan-India relations since partition in 1947. It discusses the wars and conflicts over Kashmir that have defined their relationship as a zero-sum game. While tensions have largely dominated their interactions, there have also been some joint efforts for peaceful resolutions. The most recent tensions have arisen over India's removal of special autonomous status for Kashmir and the ongoing conflict has jeopardized peace in the region. Overall the relationship has oscillated between periods of confrontation and cooperation.