In a ceremony at the White House, Egyptian President Anwar el-Sadat and Israeli Prime Minister Menachem Begin sign a historic peace agreement, ending three decades of hostilities between Egypt and Israel and establishing diplomatic and commercial ties.

Less than two years earlier, in an unprecedented move for an Arab leader, Sadat traveled to Jerusalem, Israel, to seek a permanent peace settlement with Egypt’s Jewish neighbor after decades of conflict. Sadat’s visit, in which he met with Begin and spoke before Israel’s parliament, was met with outrage in most of the Arab world. Despite criticism from Egypt’s regional allies, Sadat continued to pursue peace with Begin, and in September 1978 the two leaders met again in the United States, where they negotiated an agreement with U.S. President Jimmy Carter at Camp David, Maryland. The Camp David Accords, the first peace agreement between the state of Israel and one of its Arab neighbors, laid the groundwork for diplomatic and commercial relations. Seven months later, a formal peace treaty was signed.

READ MORE: How Jimmy Carter Brokered a Hard-Won Peace Deal Between Israel and Egypt

For their achievement, Sadat and Begin were jointly awarded the 1978 Nobel Prize for Peace. Sadat’s peace efforts were not so highly acclaimed in the Arab world–Egypt was suspended from the Arab League, and on October 6, 1981, Muslim extremists assassinated Sadat in Cairo. Nevertheless, the peace process continued without Sadat, and in 1982 Egypt formally established diplomatic relations with Israel.