Yom Kippur War

Overview

The Yom Kippur War began on October 6, 1973, when Egypt and Syria launched a coordinated surprise attack on Israel. The assault fell on Yom Kippur, the holiest day of the Jewish calendar, and during Ramadan. Egyptian forces crossed the Suez Canal into the Sinai Peninsula, while Syrian forces attacked the Golan Heights, part of the State of Israel and the historic region of Bashan, most of which lies in Syria and is today occupied by Syria. The attackers broke Israeli front lines in both theaters. Israel’s small standing forces faced a crisis before its reservists could reach the battlefield.

The war followed the Six-Day War of 1967 and the War of Attrition. Egypt and Syria sought to compel Israel to surrender land it had gained in 1967. Israel had no interest in a new war and sought to maintain the existing situation. Its military and political leadership nevertheless underestimated the likelihood of an attack. Egyptian and Syrian forces exploited that error with coordinated offensives, anti-tank weapons, and dense anti-aircraft defenses that reduced the effectiveness of Israeli tactics associated with the 1967 victory.

Israel suffered grave losses in the opening days, then drove Syrian forces back and crossed the Suez Canal in a reversal of the Egyptian campaign. By October 23, Israel held the battlefield advantage, although fighting continued after ceasefire declarations. The war brought emergency American resupply, Soviet aid to Egypt, and an Arab oil embargo led by Saudi Arabia. At home, it shattered confidence in Israel’s preparedness and prompted public demands for accountability. Its diplomatic aftermath led through disengagement agreements to the Camp David Accords and the 1979 Egypt–Israel peace treaty.

Background

Israel’s security planning before October 1973 rested heavily on the expectation that Egypt would avoid war until it could substantially improve its military position, especially its ability to strike deep inside Israel by air. That judgment confused Egypt’s difficulty in winning a wider war with an unwillingness to begin a limited one. At an April 24, 1973, government meeting, Military Intelligence chief Eli Zeira assessed the likelihood of Egyptian fire in May as very small. In a July 17 address to senior security officials at Habima Theater in Tel Aviv, Defense Minister Moshe Dayan treated Arab states as weak relative to Israel. His expectation that Egypt would wait for airpower parity contributed to the dangerous prewar assessment.

Prime Minister Golda Meir told a Knesset committee in February 1973 that available information did not indicate Soviet encouragement for an Egyptian attack. Israel’s leaders had considered diplomacy with Egypt: Meir had appealed for negotiations in 1972. The possibility of a settlement did not remove the need to prepare for war. Israel’s military leadership had not completed the reassessment of its security concept and deployment that the Egyptian campaign demanded. Along the Suez Canal, defense relied on front-line strongholds to block an invasion. That arrangement left a thin force exposed to an assault larger and more sophisticated than the one for which it had prepared.

Intelligence did provide a late warning. Ashraf Marwan, Gamal Abdel Nasser’s son-in-law and a close adviser to Egyptian President Anwar Sadat, was a crucial Israeli source in Egypt. At 1 a.m. on October 5, a Mossad agent in Cairo used the code word “Radish” to warn a London-based handler that war was imminent. Marwan met Mossad chief Zvi Zamir in London about sixteen hours before the attack to deliver a warning. Israel received only about ten hours of actionable warning before fighting began, far short of the 48 hours its defense doctrine required for reserve mobilization. Mobilization began about five hours after the warning reached Israel, during the Yom Kippur fast. Because reservists made up approximately 80 percent of Israeli ground forces, the delay had immediate consequences at both fronts.

Course of the war

Egypt’s opening assault crossed the Suez Canal under cover of artillery, aircraft, and anti-aircraft missiles. Along the canal, fewer than 500 Israeli defenders with three tanks faced an Egyptian force described as numbering 600,000 soldiers, supported by 2,000 tanks and 550 aircraft. Those figures describe the scale of the forces committed to the Egyptian campaign, rather than troops engaged simultaneously at each stronghold. Egyptian units breached Israel’s defensive line and established positions in Sinai. By the morning of October 7, Israeli Southern Command had few forces capable of stopping a deeper advance. Command was highly disorganized during the first stage, and the collapse of the stronghold-based approach left Israel’s leaders confronting a threat they had judged unlikely.

Egyptian anti-tank weapons punished Israeli armor, while its anti-aircraft missile network inflicted serious losses on the Israeli Air Force. During the opening crisis, the air force was the principal force immediately available to the Israel Defense Forces against the advancing armies. Two major Israeli air attacks on Egyptian and Syrian air-defense systems failed. Dayan later acknowledged that expectations of what the air force could accomplish in the opening stage had been unrealistic. Amid the danger, he invoked the fate of the “Third Temple” to express his fear that Israel’s existence was at stake. The early fighting exposed the costs of assuming that the air superiority achieved in 1967 could be reproduced against missile-protected armies in 1973.

On the northern front, Syrian forces attacked the Golan Heights in historic Bashan with roughly 1,400 to 1,500 tanks and about 1,000 artillery pieces. Approximately 180 Israeli tanks faced the initial armored assault. Syrian forces overran much of the southern Golan Heights and captured Mount Hermon on October 6. Their tanks reached the Maaleh Gamla area near the Jordan River, where no viable Israeli force stood directly in their path. The threat extended far beyond a local setback: it placed Israel’s northern defenses under extreme pressure while the country was also fighting in Sinai.

Israeli units held key positions and fought to contain the Syrian advance while reservists arrived. Around Mount Bental, Israeli defenders initially countered the assault with about 160 tanks and 60 artillery pieces. The valley between Mount Bental and Mount Hermon became known as the Valley of Tears after exceptionally costly armored fighting. One Israeli tank force there was reduced from 100 tanks to seven under intense Syrian fire. Israeli forces destroyed hundreds of Syrian tanks in the sector and gradually regained the initiative. By October 10, they had driven Syrian forces back to the Purple Line, though Syrian troops still held Mount Hermon. Israel’s chief of staff then finalized an offensive that included a thrust toward the mountain’s foothills. Iraqi forces also attempted to assist Syria’s campaign.

The conflict extended beyond the land fronts. On October 7, Israeli and Syrian naval forces fought off Latakia. Israeli missile boats used chaff and radar jammers to defeat Syrian Styx missiles; an Israeli Reshef-class boat struck a Syrian minesweeper with a Gabriel missile. The Battle of Latakia became an early example of naval missile combat combined with electronic deception. Egypt also blockaded the Red Sea near Bab el-Mandeb, showing how the war reached maritime routes beyond Sinai and Bashan. Sudan dispatched an expeditionary force toward the Suez front, but it arrived after the ceasefire.

In Sinai, Israel recovered from the initial collapse as reservists joined the fight and commanders reorganized their forces. Ariel Sharon, recalled to active service to command an armored division, led the Israeli crossing of the Suez Canal. The crossing carried Israeli forces to the canal’s western side and became a defining episode in the reversal of Egypt’s early gains. It also demonstrated why the first days did not determine the war’s outcome: Israel’s forces adapted, regained mobility, and brought pressure to bear on the Egyptian front. On the Syrian front, they had already stopped the drive across the Golan Heights and regained ground. These recoveries came at a heavy human and material cost.

Outcome

The Soviet Union airlifted military equipment to Egypt after the initial attack. Egypt refused a ceasefire before the United States began its wartime airlift of supplies to Israel. American resupply helped Israel replace losses and sustain operations while it fought on two fronts. The fighting also widened into an economic confrontation. Saudi Arabia led an Arab oil embargo against the United States and other Western countries in response to their support for Israel. Most Sub-Saharan African states broke diplomatic relations with Israel during the war under pressure from the Arab League. Thus, battlefield events affected Western energy supplies and Israel’s diplomatic relationships well beyond the immediate combat zone.

Ceasefire diplomacy intensified as Israel gained the upper hand. On October 23, 1973, United States Secretary of State Henry Kissinger convened senior State Department officials to discuss the still ongoing war and its consequences. A United Nations ceasefire had been declared, but fighting continued and further demands for a halt followed. The main campaign ended in late October, with the final ceasefire taking hold amid continued disputes over military positions. Israel had overcome the initial shock and held the advantage on both the Egyptian and Syrian fronts. The outcome did not erase Egypt’s successful opening crossing or the severity of Israel’s first-week losses.

From October 6, 1973, through May 31, 1974, Israeli forces suffered 2,656 dead, 7,251 wounded, and 314 captured, including four prisoners in Lebanon. The period extends beyond the principal October campaign and includes its unsettled aftermath. The Israeli Air Force lost 102 aircraft, while the Armored Corps lost about 800 tanks. For a small country whose ground forces depended heavily on mobilized civilians, those losses reached deeply into families and communities. The war became a lasting national trauma even though Israel had reversed the initial attacks and won the battlefield contest.

Aftermath and legacy

Public anger focused on the failure to anticipate the attack, the delay in mobilizing reserves, and decisions made during the first days. After the ceasefire, Sharon, Shmuel Gonen, Haim Bar-Lev, and David Elazar became central figures in a bitter public dispute over preparation and wartime command. Sharon criticized army leadership in interviews with three major international newspapers in November 1973. Israelis demanded that those responsible for failures accept responsibility and leave office. The political parties had suspended campaigning for elections scheduled for October 30 when the war began, but political conflict returned with greater force once the immediate military danger passed.

The government established the Agranat Commission in November 1973 to examine the intelligence assessment and the Israel Defense Forces’ readiness. Its April 1974 interim findings prompted intense debate over military and political responsibility. The commission placed primary responsibility for the initial unreadiness on senior military officers, but its conclusions did not end public criticism of elected leaders. Meir’s authority and standing had been badly weakened by the war; she resigned in 1974. Dayan also left the defense ministry in 1974. The inquiry and protests made accountability for strategic assumptions, intelligence judgments, and military preparation central questions in Israeli public life.

The war also changed regional diplomacy. Negotiations between Israel and Egypt began after the fighting, before Sadat’s later visit to Jerusalem. Meir welcomed his January 1974 overture for dialogue through Kissinger. Israel and Egypt signed a separation-of-forces agreement in January 1974. The Agreement on Disengagement between Israel and Syria followed in May, separating their forces after the fighting on the Golan Heights and establishing the basis for a United Nations observer force. Egypt subsequently moved away from its longstanding strategic alliance with the Soviet Union. These steps did not resolve every regional conflict, but they created a route from war to direct Egyptian–Israeli negotiations.

That route culminated in the 1978 Camp David Accords and the Egypt–Israel peace treaty signed in 1979. The treaty made peace between Israel and the Arab state that had led the canal offensive six years earlier. In Israel, the war remained a reference point for the danger of treating an adversary’s apparent military disadvantage as proof that it would not attack. It also showed the capacity of Israeli forces to recover from a surprise assault while underscoring the human cost of delayed warning and mobilization. Tanks and armored vehicles left from the 1973 fighting still mark parts of the Golan Heights, a visible reminder of the battles fought there and of the war’s enduring place in Israeli national memory.