1949 Armistice Agreements in the context of "Status of Jerusalem"

The modern borders of Israel exist as the result both of past wars and of diplomatic agreements between the State of Israel and its neighbours, as well as an effect of the agreements among colonial powers ruling in the region before Israel's creation. Only two of Israel's five total potential land borders are internationally recognized and uncontested, while the other three remain disputed; the majority of its border disputes are rooted in territorial changes that came about as a result of the 1967 Arab–Israeli War, which saw Israel occupy large swathes of territory from its rivals. Israel's two formally recognized and confirmed borders exist with Egypt and Jordan since the 1979 Egypt–Israel peace treaty and the 1994 Israel–Jordan peace treaty, while its borders with Syria (via the Israeli-occupied Golan Heights), Lebanon (via the Blue Line; see Shebaa Farms dispute) and the Palestinian territories (Israeli-occupied land largely recognized as part of the de jure State of Palestine) remain internationally defined as contested.

According to the Green Line agreed upon in the 1949 Armistice Agreements, Israel is demarcated by Lebanon to the north, the Golan Heights under Syrian sovereignty as well as the rest of Syria to the northeast, the Palestinian West Bank and Jordan to the east, and by the Palestinian Gaza Strip and Egypt to the southwest. The Israeli border with Egypt is the international border demarcated in 1906 between the United Kingdom and the Ottoman Empire, and confirmed in the 1979 Egypt–Israel peace treaty; the Israeli border with Jordan is based on the border defined in the 1922 Trans-Jordan memorandum, and confirmed in the 1994 Israel–Jordan peace treaty.

The 1948 Palestine war was fought in the territory of what had been, at the start of the war, British-ruled Mandatory Palestine. During the war, Zionist forces conquered territory and established the State of Israel, over 700,000 Palestinians fled or were expelled from Palestine, the British withdrew from their Mandate of Palestine, and four neighbouring Arab nations entered the territory and joined the war. By the end of the war, the State of Israel had held or captured about 78% of former territory of the mandate, the Kingdom of Jordan had captured and later annexed the area that became the West Bank, and Egypt had captured the Gaza Strip. The war formally ended with the 1949 Armistice Agreements, which established the State of Israel and laid out the Green Line demarcating these territories. It was the first war of the Israeli–Palestinian conflict and the broader Arab–Israeli conflict.

The war had two main phases, the first being the 1947–1948 civil war, which began on 30 November 1947, a day after the United Nations voted to adopt the Partition Plan for Palestine, which planned for the division of the territory into Jewish and Arab sovereign states. During this period, the British still maintained a declining rule over Palestine and occasionally intervened in the violence. Initially on the defensive, the Zionist forces switched to the offensive in April 1948. In anticipation of an invasion by Arab armies, they enacted Plan Dalet, an operation aimed at securing territory for the establishment of a Jewish state.

The Six-Day War, also known as the June war, 1967 Arab–Israeli war or third Arab–Israeli war, was fought between Israel and a coalition of Arab states, primarily Egypt, Syria, and Jordan from 5 to 10 June 1967.

Military hostilities broke out amid poor relations between Israel and its Arab neighbors, who had been observing the 1949 Armistice Agreements signed at the end of the First Arab–Israeli War. In 1956, regional tensions over the Straits of Tiran (giving access to Eilat, a port on the southeast tip of Israel) escalated in what became known as the Suez Crisis, when Israel invaded Egypt over the Egyptian closure of maritime passageways to Israeli shipping, ultimately resulting in the re-opening of the Straits of Tiran to Israel as well as the deployment of the United Nations Emergency Force (UNEF) along the Egypt–Israel border.

East Jerusalem (Arabic: القدس الشرقية, romanized: al-Quds ash-Sharqiya; Hebrew: מִזְרַח יְרוּשָׁלַיִם, romanized: Mizraḥ Yerushalayim) is the portion of Jerusalem that was held by Jordan after the 1948 Arab–Israeli War, as opposed to West Jerusalem, which was held by Israel. Captured and occupied in 1967, this area was unilaterally annexed by Israel in 1980. The United Nations and other intergovernmental organizations consider East Jerusalem a part of the Palestinian territories according to international law, and under illegal occupation by Israel. Many states recognize East Jerusalem as the capital of the State of Palestine (such as Brazil, China, Russia, and all 57 members of the Organisation of Islamic Cooperation), whereas other states (such as Australia, France and others) assert that East Jerusalem "will be the capital of Palestine", while referring to it as "an occupied territory". In 2020, East Jerusalem had a population of 595,000 inhabitants, of whom 361,700 (61%) were Palestinian Arabs and 234,000 (39%) were Jewish Israelis. Israeli settlements in East Jerusalem are illegal under international law and in the eyes of the international community.

Jerusalem was envisaged as a separate, international city under the 1947 UN partition plan. It was, however, divided by the 1948 war that followed Israel's declaration of independence. As a result of the 1949 Armistice Agreements, the city's western half came under Israeli control, while its eastern half, containing the famed Old City, fell under Jordanian control, at the exception of Mount Scopus enclave. Israel occupied East Jerusalem during the 1967 Six-Day War; since then, the entire city has been under Israeli control. The 1980 Jerusalem Law declared unified Jerusalem the capital of Israel, formalizing the effective annexation of East Jerusalem. Palestinians and many in the international community consider East Jerusalem to be the future capital of the State of Palestine. The status of Jerusalem has been described as "one of the most intractable issues in the Israeli–Palestinian conflict", with conflicting claims to sovereignty over the city or parts of it, and access to its holy sites.

The occupation of the Gaza Strip by the United Arab Republic began in 1959 following the dissolution of the All-Palestine Protectorate, which had ruled the Gaza Strip as a client state of Egypt since the 1948 Arab–Israeli War, and its merger with the United Arab Republic.

The 1949 Armistice Agreements, which ended the Arab–Israeli War by delineating the Green Line as the armistice line between Israel and its four neighboring countries (Lebanon, Syria, Jordan, and Egypt), left the Kingdom of Egypt in control of a small swath of territory that was part of Mandatory Palestine prior to the war. That swath of territory became known as the Gaza Strip. In 1949 Egypt created the client state named the All-Palestine Government which lasted until 1959, the year after the Republic of Egypt and the Second Syrian Republic merged to form a single sovereign state known as the United Arab Republic. The Egyptian occupation of the Gaza Strip was interrupted for 4 months in late 1956 and early 1957 when Israel briefly occupied the strip as part of the 1956 Suez Crisis. The Egyptian occupation ended entirely during the 1967 Six-Day War, after which the territory became occupied by Israel with the establishment of the Israeli Military Governorate.

The Green Line, or 1949 Armistice border, is the demarcation line set out in the 1949 Armistice Agreements between the armies of Israel and those of its neighbors (Egypt, Jordan, Lebanon, and Syria) after the 1948 Arab–Israeli War. It served as the de facto borders of the State of Israel from 1949 until the Six-Day War in 1967, and continues to represent Israel's internationally recognized borders with the two Palestinian territories: the West Bank and the Gaza Strip.

The Green Line was intended as a demarcation line rather than a permanent border. The 1949 Armistice Agreements were clear (at Arab insistence) that they were not creating permanent borders. The Egyptian–Israeli agreement, for example, stated that "the Armistice Demarcation Line is not to be construed in any sense as a political or territorial boundary, and is delineated without prejudice to rights, claims and positions of either Party to the Armistice as regards ultimate settlement of the Palestine question." Similar provisions are contained in the Armistice Agreements with Jordan and Syria. The Agreement with Lebanon contained no such provisions, and was treated as the international border between Israel and Lebanon, stipulating only that forces would be withdrawn to the Israel–Lebanon border.

The Israeli annexation of East Jerusalem, known to Israelis as the reunification of Jerusalem, refers to the Israeli occupation of East Jerusalem during the 1967 Six-Day War, and its annexation.

Jerusalem was envisaged as a separate, international city under the 1947 United Nations partition plan, but it was divided by the 1948 war that followed Israel's declaration of independence. As a result of the 1949 Armistice Agreements, the city's western half came under Israeli control, while its eastern half, containing the Old City, fell under Jordanian control. In 1950, Jordan annexed East Jerusalem as part of its larger annexation of the West Bank.