Corpus separatum was the internationalization proposal for Jerusalem and its surrounding area as part of the United Nations Partition Plan for Palestine. It was adopted by the United Nations General Assembly with a two-thirds majority in November 1947. According to the Partition Plan, the city of Jerusalem would be brought under international governance, conferring it a special status due to its shared importance for the Abrahamic religions. The legal base ("Statute") for this arrangement was to be reviewed after ten years and put to a referendum. The corpus separatum was again one of the main issues of the post-war Lausanne Conference of 1949, besides the borders of Israel and the question of the Palestinian right of return.

The status of Jerusalem has been described as "one of the most intractable issues in the Israeli–Palestinian conflict" due to the long-running territorial dispute between Israel and the Palestinians, both of which claim it as their capital city. Part of this issue of sovereignty is tied to concerns over access to holy sites in the Abrahamic religions; the current religious environment in Jerusalem is upheld by the "Status Quo" of the former Ottoman Empire. As the Israeli–Palestinian peace process has primarily navigated the option of a two-state solution, one of the largest points of contention has been East Jerusalem, which was part of the Jordanian-annexed West Bank until the beginning of the Israeli occupation in 1967.