Operation Guardian of the Walls

Military Operation · 2021-05-10 · 11-day Israeli military operation in Gaza Strip

2021-05-10
Date
Gaza Strip, Israel
Location
260 Palestinians
Deaths
Tens of thousands temporarily displaced in…
Displaced
Location, thenGaza Strip, Israel, East Jerusalem, West Bank, Hamas-governed Gaza under Israeli blockade; East Jerusalem and West Bank under occupation
Location, nowGaza Strip, Under Israeli blockade; governed by Hamas, Blockade ongoing; reconstruction incomplete
PerpetratorsIsrael Defense Forces; Israeli Air Force; Hamas military wing (Izz ad-Din al-Qassam Brigades); Palestinian Islamic Jihad
ClassificationMilitary Operation

Summary

The escalation that became Operation Guardian of the Walls was rooted in events in Jerusalem. During Ramadan 2021, Israeli police erected barriers preventing Palestinians from gathering at Damascus Gate—a traditional gathering place—and violently suppressed protests. Simultaneously, Israeli courts moved forward with eviction proceedings against Palestinian families in the Sheikh Jarrah neighborhood of East Jerusalem to make way for Jewish settlers. On May 7, hundreds of Palestinians were injured when Israeli police stormed Al-Aqsa Mosque compound during prayers, firing rubber bullets, stun grenades, and tear gas inside the mosque itself. International condemnation was swift, but on May 10—Lailat al-Qadr, the holiest night of Ramadan—Israeli police again raided Al-Aqsa, injuring over 300 Palestinians. Hamas issued an ultimatum demanding Israeli forces withdraw from Al-Aqsa and Sheikh Jarrah by 6 PM. When Israel refused, Hamas and Palestinian Islamic Jihad fired rockets toward Jerusalem at 6:05 PM, marking the beginning of the conflict.

Israel's response was immediate and overwhelming. Within hours, Israeli jets struck over 130 targets across Gaza. Over the next 11 days, the IDF conducted more than 1,500 airstrikes while Palestinian armed groups fired 4,360 rockets and mortars into Israel—the Iron Dome intercepted approximately 90% of projectiles headed toward populated areas. The first day saw the al-Masri family strike in Beit Hanoun where a missile killed 8 civilians including 6 children who were packing barley for animal feed. Israel claimed it was a misfired Palestinian rocket, but Human Rights Watch's investigation found evidence of a guided missile and no military target. The deadliest single incident came on May 16 when Israeli forces launched a four-minute assault on al-Wahda Street in central Gaza City, causing three multi-story residential buildings to collapse. Forty-four civilians were killed including 18 children. HRW found the buildings collapsed after missiles struck the road or sidewalk adjacent to them—there were no evident military targets.

The operation took place against the backdrop of Israel's 14-year blockade of Gaza and its systematic discrimination against Palestinians, which Human Rights Watch had characterized as apartheid just one month earlier in April 2021. The 11-day conflict killed 260 Palestinians (129 civilians according to UN/HRW, though Israel claimed most were militants). Thirteen Israelis died including 12 civilians killed by rockets. Human Rights Watch conducted in-depth investigations of three Israeli strikes that killed 62 Palestinian civilians total, finding 'no evident military targets in the vicinity' of any—constituting apparent war crimes. A third incident HRW investigated was the May 15 bombing of a building in Shati refugee camp that killed 10 people (8 children, 2 women); Israel claimed senior Hamas officials were hiding there, but HRW found no evidence of military targets. The report also documented that Palestinian armed groups committed war crimes through indiscriminate rocket fire at Israeli population centers. The operation ended with an Egyptian-mediated ceasefire on May 21, but neither side achieved strategic objectives, and Gaza's humanitarian crisis deepened significantly.

At a glance

Event Type Military Operation / Armed Conflict
Trigger Context Sheikh Jarrah evictions; Al-Aqsa violence
Verification HRW; B'Tselem; UN OCHA; Amnesty International
HRW Finding Apparent war crimes by both sides

Casualties

Palestinians Killed 260
UN/HRW: 129 civilians; Gaza Health Ministry: 248 (66 children, 39 women); Israel claims 200 militants killed
Child Fatalities 66 children
Including 18 children killed in al-Wahda Street collapse; 8 children in Shati camp bombing
Al-Wahda Street Massacre - May 16 44 civilians
Deadliest single incident: 3 residential buildings collapsed after 4-minute assault; 18 children among dead
Al-Masri Family - May 10 8 (6 children)
First major incident: Family packing barley when struck. Israel claimed misfired Palestinian rocket; HRW found guided missile, no military target
Shati Refugee Camp - May 15 10 (8 children)
Building destroyed killing 8 children, 2 women. Israel: Hamas officials hiding there. HRW: No evidence of military target
Palestinians Wounded 1948
Gaza Health Ministry figures; many with severe injuries requiring long-term care
Israelis Killed 13
12 civilians (including child, 2 Thai workers, 2 Israeli Arabs); 1 soldier killed by anti-tank missile
Israelis Wounded Several hundred
Hundreds injured by rockets, shrapnel, running to shelters; many anxiety attacks
Israeli Airstrikes 1,500+
IDF struck over 1,500 targets including residential buildings, alleged tunnels, government facilities
Rockets/Mortars Fired from Gaza 4360
3,573 fell inside Israel; ~680 misfired and fell in Gaza; Iron Dome intercepted ~90% headed to populated areas
Misfired Palestinian Rockets ~680 rockets
Approximately 680 rockets fell short, landing in Gaza and causing Palestinian casualties

Timeline

2021-04-01 00:00:00
Ramadan tensions escalate
Israeli police erect barriers at Damascus Gate preventing traditional Ramadan gatherings. Violence erupts as police attack Palestinian worshippers. Far-right Israeli groups march through Jerusalem chanting 'Death to Arabs.' Sheikh Jarrah eviction proceedings advance in Israeli courts.
2021-05-07 00:00:00
Israeli police storm Al-Aqsa
Israeli police raid Al-Aqsa Mosque during evening prayers, firing rubber bullets, stun grenades, and tear gas inside mosque. Hundreds of Palestinians injured. Images of violence during Ramadan spark international condemnation and rage across Palestinian territories.
10 May 2021, morning
Second Al-Aqsa raid - Lailat al-Qadr
On holiest night of Ramadan, Israeli police again storm Al-Aqsa Mosque. Over 300 Palestinians injured. Hamas issues ultimatum: withdraw from Al-Aqsa and Sheikh Jarrah by 6 PM or face consequences.
2021-05-10 18:05:00
Hamas fires rockets; operation begins
After Israel ignores ultimatum, Hamas and PIJ fire rockets toward Jerusalem. Israel launches Operation Guardian of the Walls with massive airstrikes across Gaza. Over 130 targets struck in opening hours.
10 May 2021, ~6 PM
Al-Masri family strike
Missile strikes near four houses of extended al-Masri family in Beit Hanoun. Eight killed including six children who were packing barley for animal feed. Israel claims misfired Palestinian rocket; HRW investigation finds evidence of guided missile, no military target—apparent war crime.
2021-05-11 00:00:00
Escalation intensifies
Hamas and PIJ launch hundreds of rockets at Ashdod and Ashkelon, killing 2 Israelis, wounding 90+. A third Israeli woman killed in Rishon LeZion. Israeli airstrikes intensify across Gaza. Both sides commit to sustained operations.
2021-05-12 00:00:00
High-profile targeted killings
Israel kills Bassem Issa (Gaza Brigade commander), Jomaa Talha, and multiple senior Hamas officials and engineers. Hamas responds with increased rocket barrages. Intercommunal violence erupts in mixed Israeli cities including Lod, Acre, Haifa.
2021-05-15 00:00:00
Shati refugee camp bombing
Israeli airstrike destroys three-story building in Shati camp, killing 10 people: 8 children and 2 women. Israel claims senior Hamas officials hiding in building. HRW investigation finds no evidence of military target at or near site—apparent war crime.
2021-05-16 01:00:00
Al-Wahda Street massacre
Deadliest incident: Israeli military launches four-minute assault on central Gaza City's al-Wahda Street. Three multi-story residential buildings collapse after missiles struck road/sidewalk adjacent to buildings. Forty-four civilians killed including 18 children. HRW: no evident military targets—apparent war crime.
14-15 May 2021
IDF 'ground invasion' false alarm
IDF announces troops 'on ground and in air' attacking Gaza, misleading international media into reporting ground invasion. IDF later retracts, apologizes for 'internal miscommunication.' Later revealed as deliberate deception to lure Hamas fighters into tunnels for airstrikes.
17-20 May 2021
Continued bombardment; diplomacy intensifies
Heavy exchanges continue. US initially blocks UN Security Council ceasefire statement, later shifts under domestic pressure. Egypt leads mediation efforts. Secretary of State Blinken speaks with Netanyahu multiple times.
2021-05-21 02:00:00
Ceasefire takes effect
After 11 days, Egyptian-mediated unconditional ceasefire begins. Both sides fire until minutes before deadline. Total toll: 260 Palestinians (129 civilians), 13 Israelis. 4,360+ rockets fired from Gaza; 1,500+ Israeli airstrikes. Neither side achieves strategic objectives.
2021-07-27 00:00:00
Human Rights Watch releases report
HRW publishes comprehensive investigation finding apparent war crimes by both sides. Investigated three Israeli strikes killing 62 civilians where 'there were no evident military targets in the vicinity.' Also documents Palestinian rocket attacks as war crimes. Calls for ICC investigation.

Testimony

Gerry Simpson
“In presenting HRW report July 2021: 'In each of three cases we investigated in-depth, Israeli forces carried out attacks that killed 62 Palestinian civilians and we found no evident military targets in the vicinity...All of these incidents should be investigated as apparent war crimes. The IDF's consistent failure to seriously investigate alleged war crimes underscores the need for an ICC investigation.'”
Omar Abu el-Ouf
“Testified to HRW: 'I felt the floor disappear beneath us as the missile struck. The building pancaked—three floors became one. My brother Izzideen was killed. His wife and four children. My cousin Wael and his wife and three children. The building next to us also collapsed. We heard people screaming for help in the rubble for hours. Forty-four people from our street died. There were no fighters here, no military target.'”
Youssef al-Masri
“Describing May 10 strike that killed his children: 'My children were packing barley for the animals. I saw it with my own eyes—the missile came from the east [from Israel]. My children were scattered everywhere, ripped to pieces. Israel says it was a Palestinian rocket but I know what I saw. They were just children working, not fighters.' Lost Rahaf (10), Yazan (13), Marwan (12), Ibrahim (7), and two others.”
António Guterres
“Statement during conflict: 'Fighting must stop. It must stop immediately. Rockets and mortars on one side and aerial and artillery bombardments on the other must stop...I appeal to all parties to observe maximum restraint, to protect civilians, and to allow mediation efforts to intensify and succeed.' Also condemned Sheikh Jarrah evictions as violations of international law.”
Amnesty International
“In statement during conflict: 'All sides in this conflict have an absolute obligation to comply with international humanitarian law. They must take all feasible precautions to protect civilians. Israeli forces have repeatedly violated these obligations...Palestinian armed groups have also shown a blatant disregard for international humanitarian law by firing rockets indiscriminately into civilian areas in Israel.'”
Iyad al-Mughrabi
“Witness to May 15 bombing killing 8 children: 'It was around 1:30 in the morning. The explosion was massive—the whole building came down. We ran to help. We found children buried in the rubble. Eight children died, all from the Abu Hatab family. Israel says Hamas was there but we never saw any fighters. Just families living there.'”
Human Rights Watch (institutional)
“April 2021 report conclusion: 'Those who strive for Israeli-Palestinian peace, whether a one or two-state solution or a confederation, should in the meantime recognize this reality for what it is and bring to bear the sorts of human rights tools that can end it. This includes calling on states to condition arms sales and security assistance to Israel on it taking concrete and verifiable steps toward ending their commission of these crimes.'”
Breaking the Silence (Israeli soldiers)
“Anonymous testimony from Gaza operations: 'The rules of engagement were very loose. If intelligence said there was something there, we hit it. We didn't always know what we were hitting. Sometimes entire buildings would come down and we'd find out later families were inside. The attitude was: Hamas is responsible for being there, not us.'”

War crimes

Al-Wahda Street Attack - 44 Civilians Killed
May 16, 1 AM: Four-minute assault collapsed three residential buildings in central Gaza City, killing 44 civilians including 18 children. HRW determined buildings collapsed after missiles struck road/sidewalk adjacent to buildings. No evident military targets. HRW: 'Apparent war crime.' Survivor Omar Abu el-Ouf described floor disappearing beneath family as missiles struck.
Al-Masri Family Strike - 6 Children Killed
May 10, 6 PM: Missile killed 8 members of al-Masri family (6 children) who were packing barley in Beit Hanoun. Israel claimed misfired Palestinian rocket from west. HRW analysis of munition remnants, witness accounts found 'evidence indicated weapon was guided missile.' No military target at or near site. Father Youssef al-Masri: 'I saw it with my own eyes...children scattered, ripped to pieces.'
Shati Refugee Camp Bombing - 8 Children Killed
May 15: Israeli airstrike destroyed three-story building in Shati camp killing 10 (8 children, 2 women). Israel claimed senior Hamas officials hiding in building. HRW investigation: building hit by US-made guided missile, 'found no evidence of military target at or near site.' Called for investigation into whether legitimate military target existed.
Indiscriminate Rocket Attacks (Palestinian War Crime)
Hamas and PIJ fired 4,360 unguided rockets and mortars at Israeli population centers over 11 days, killing 12 Israeli civilians. HRW: Rockets indiscriminate, violate prohibition on attacks not directed at specific military objectives. Each rocket launch at civilian areas constitutes war crime. 'Palestinian armed groups committed unlawful attacks.'
Destruction of High-Rise Buildings
Israel destroyed multiple high-rise towers in Gaza containing homes, businesses, media offices. Al-Jalaa tower (housing AP and Al Jazeera) destroyed May 15. Israel provided warnings but HRW investigating whether military objectives sufficient to justify destruction. Systematic targeting of infrastructure.
Pattern of Attacks Without Evident Military Targets
HRW investigated three strikes killing 62 civilians total. In all three cases: 'no evident military targets in the vicinity.' Pattern suggests systemic failure in target selection, inadequate precautions, or deliberate attacks on civilians. HRW: 'Israeli authorities' consistent unwillingness to seriously investigate alleged war crimes' compounds violations.

Legal classification

Commanders

Benjamin Netanyahu Prime Minister of Israel (2009-2021)
Authorized Operation Guardian of the Walls amid Sheikh Jarrah eviction crisis. Defended operation as necessary response to Hamas rockets. Lost power in June 2021 following operation, replaced by Bennett-Lapid government.
Benny Gantz Defense Minister (2020-2022)
Oversaw military operations during Guardian of the Walls. Former IDF Chief of Staff during 2014 Protective Edge. Defended strikes as targeting Hamas infrastructure. Rejected war crimes allegations.
Aviv Kochavi IDF Chief of General Staff (2019-2023)
Top military commander during operation. Made operational decisions including targeting. Later stated IDF struck over 1,500 targets including 'metro' tunnel system. Maintained forces acted according to international law.
Yahya Sinwar Hamas Leader in Gaza (2017-2024)
Hamas Gaza leader. Made decision to fire rockets at Jerusalem after Al-Aqsa raids. Coordinated with PIJ on sustained rocket campaign. Presented operation as defense of Jerusalem and Al-Aqsa.
Ismail Haniyeh Hamas Political Bureau Head (2017-2024)
Hamas overall political leader. Supported rocket operations. Engaged in Egyptian ceasefire mediation. Defended attacks as resistance to occupation and defense of Jerusalem.
Mohammad Deif Commander, Izz ad-Din al-Qassam Brigades
Commander of Hamas military wing. Directed rocket operations and tunnel defenses. Named operation 'Seif al-Quds' (Sword of Jerusalem) emphasizing Jerusalem context.

Historical impact

Immediate Impact (May-June 2021)
260 Palestinians killed (129 civilians, 66 children); 13 Israelis killed (12 civilians)
Long-term Consequences (2021-Present)
Established pattern: Jerusalem tensions directly triggering Gaza escalations—repeated in 2023-2024
Accountability Status
✗ No Israeli officials or soldiers prosecuted for documented violations
Immediate Impact (May-June 2021)
Operation arose from Jerusalem tensions: Sheikh Jarrah evictions, Al-Aqsa raids during Ramadan
Long-term Consequences (2021-Present)
Zero accountability for documented violations by either side as of 2025
Accountability Status
✗ No accountability for al-Wahda Street attack (44 civilians killed)
Immediate Impact (May-June 2021)
First major escalation where Hamas directly responded to Jerusalem events—shifted Hamas posture as defender of Al-Aqsa
Long-term Consequences (2021-Present)
HRW April 2021 apartheid determination provided framework for understanding systematic nature of violations
Accountability Status
✗ No accountability for al-Masri family strike (6 children killed)
Immediate Impact (May-June 2021)
Human Rights Watch documented apparent war crimes by both sides in July 2021 report
Long-term Consequences (2021-Present)
ICC investigation includes Guardian of the Walls but no charges filed as of 2025
Accountability Status
✗ No accountability for Shati camp bombing (8 children killed)
Immediate Impact (May-June 2021)
Sparked unprecedented intercommunal violence within Israel between Jewish and Arab citizens
Long-term Consequences (2021-Present)
Operation demonstrated Iron Dome effectiveness (90% interception) but also vulnerability to saturation attacks
Accountability Status
✗ Israeli military investigations: standard pattern of closing cases without meaningful accountability
Immediate Impact (May-June 2021)
Netanyahu government fell in June 2021 partly due to operation's political fallout
Long-term Consequences (2021-Present)
Hamas gained political capital as defender of Jerusalem/Al-Aqsa among Palestinians
Accountability Status
✗ Palestinian armed groups: no known investigations or prosecutions for indiscriminate rocket attacks
Immediate Impact (May-June 2021)
Reinforced Gaza's humanitarian catastrophe amid ongoing 14-year blockade
Long-term Consequences (2021-Present)
International community's failure to address root causes (occupation, blockade, apartheid) ensured future escalations
Accountability Status
✓ Human Rights Watch comprehensively documented violations by both sides
Long-term Consequences (2021-Present)
Intercommunal violence within Israel exposed deeper fractures in Israeli society
Accountability Status
✓ HRW called for ICC investigation and targeted sanctions
Accountability Status
✓ ICC has jurisdiction; investigation ongoing but slow progress
Accountability Status
✓ HRW's apartheid determination (April 2021) provided crucial legal framework
Accountability Status
✓ International human rights community united in condemning violations by both sides

All documented events