evidence: On May 15, regular Arab armies entered what had been Mandate Palestine. This intervention/invasion marked the transition of the 1947–1948 Civil War in Mandatory Palestine into the 1948 Arab–Israeli War. The tide of battle soon turned against the Arabs, and Israel then launched a series of military offensives, greatly expanding its territorial holdings. The end of the war saw the Lausanne Conference of 1949. Following internationally supervised Arab-Israeli negotiations, a boundary based on the cease-fire lines of the war with minor territorial adjustments, commonly referred to as the Green Line, was agreed upon in the 1949 Armistice Agreements. The Green Line was expressly declared in the Armistice Agreements as a temporary demarcation line, rather than a permanent border, and the Armistice Agreements relegated the issue of permanent borders to future negotiations. The area to the west of the Jordan River came to be called the West Bank, and was annexed by Jordan in 1950;[16] and the Gaza Strip was occupied by Egypt. During the Six-Day War of 1967, Israel captured the West Bank from Jordan, Gaza Strip and Sinai peninsula from Egypt, and Golan Heights from Syria, and placed these territories under military occupation. [...] Israel and the Palestinian territories now lay entirely within the boundaries of the former territory of Mandatory Palestine. By the Egypt–Israel peace treaty of 1979, Egypt renounced all claims to the Gaza Strip. In 1988, Jordan renounced all claims to the West Bank;[18] this was made official in the Israel–Jordan Treaty of Peace of 1994. The Green Line is Israel's contested boundary with the Palestinian territories.