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what caused the war between israel and palestine 2023

The 2023 war between Israel and Palestinian groups in Gaza (often called the Israel–Hamas war) began with a large Hamas-led attack on Israel on 7 October 2023, and then rapidly escalated into a full-scale Israeli military campaign in Gaza, rooted in decades of conflict over land, occupation, security, and national rights.

What Caused the War Between Israel and Palestine in 2023?

1. The Immediate Trigger: October 7, 2023

On 7 October 2023, Hamas and allied Palestinian armed groups launched a surprise, multi‑front attack on southern Israel from the Gaza Strip.

Key features of the attack included:

  • Large rocket barrages fired from Gaza into Israeli towns and cities
  • Armed militants crossing the border fence into Israeli communities and military bases
  • Killings of civilians and soldiers, and the taking of hostages into Gaza

Rough casualty estimates for that initial day and its immediate aftermath:

  • Around 1,200–1,300 people killed in Israel, including civilians and soldiers, plus foreign nationals
  • Around 200–250 people taken hostage and transported into Gaza

In response, Israel’s government declared a state of war against Hamas and launched extensive airstrikes and later ground operations in Gaza.

In simple terms: the direct “start” of the 2023 war was the Hamas‑led attacks on October 7 and Israel’s subsequent declaration of war and large‑scale offensive.

2. Hamas’s Stated Reasons for the Attack

Hamas framed the October 7 operation as a response to long‑standing grievances.

Common themes in Hamas officials’ statements included:

  • Decades of occupation and blockade : They cited Israel’s occupation of Palestinian territories and the blockade of Gaza (in place since 2007) as central motivations.
  • Violence against Palestinians : References to killings of Palestinians in Gaza and the West Bank, including by Israeli forces and settlers.
  • Al‑Aqsa Mosque and Jerusalem : Hamas pointed to Israeli actions around the Al‑Aqsa Mosque compound in East Jerusalem (a highly sensitive religious site) as a catalyst.
  • Prisoners : The group said it aimed to secure the release of thousands of Palestinians held in Israeli prisons, in part by capturing Israeli hostages.

One BBC report summarized Hamas’s justification as a reaction to “decades of Israeli oppression, the killing of Palestinians, and the prolonged blockade of the Gaza Strip,” along with events at Al‑Aqsa and the issue of prisoners. Wikipedia’s entry on the Gaza war echoes these themes, listing occupation, blockade, Al‑Aqsa, settler violence, movement restrictions, and prisoners as reasons given by Hamas.

3. Israel’s Position on Why the War Started

The Israeli government describes the 2023 war primarily as a war of self‑defense after an unprovoked and brutal terrorist attack.

Key elements of the Israeli narrative:

  • Hamas is designated as a terrorist organization by Israel, the United States, the EU, and others.
  • The October 7 attack is portrayed as a massacre targeting civilians in homes, at a music festival, and in border communities.
  • The primary goal stated by Israeli leaders is to dismantle Hamas’s military and governing capabilities in Gaza so it cannot repeat such attacks.

Israel’s leaders emphasize security: they argue that no state can tolerate such attacks on its civilians and must respond with force.

4. Deeper Roots: Long-Term Causes Behind the 2023 Explosion

While October 7 is the immediate spark, the 2023 war sits on top of more than a century of conflict and several recent trends.

Long-standing conflict and occupation

  • The broader Israeli–Palestinian conflict dates back to the early 20th century, involving competing national movements (Zionism and Palestinian nationalism) over the same territory.
  • Since 1967, Israel has occupied the West Bank, East Jerusalem, and (until its 2005 withdrawal) the Gaza Strip; most of the international community considers this occupation and the settlement enterprise in the West Bank illegal under international law.
  • Palestinian factions generally demand an independent state in these territories, while the current Israeli government includes parties that reject Palestinian statehood and support extending or formalizing Israeli control over the West Bank.

Gaza, blockade, and repeated wars

  • Hamas took control of Gaza in 2007 after winning elections and then violently ousting Fatah forces, leading Israel (and Egypt) to impose a strict blockade on Gaza.
  • There have been multiple rounds of war between Israel and Hamas (notably in 2008–09, 2012, 2014, and 2021), leaving high casualties and deep destruction in Gaza.
  • Many analysts describe Gaza as a place under de facto siege, with severe restrictions on movement, trade, and reconstruction, contributing to economic collapse and humanitarian crisis.

Rising violence in the West Bank before 2023

  • The year before the attack (2022–23) saw the deadliest period in the West Bank since UN tracking began in 2005, with hundreds of Palestinians killed by Israeli forces or settlers, and dozens of Israelis killed in Palestinian attacks.
  • This rising violence, settlement expansion, and frequent military raids increased anger and despair among Palestinians and heightened tensions overall.

Regional and political dynamics

Some analysts suggest additional background factors:

  • Internal Israeli politics : Deep domestic turmoil in Israel in 2023 over judicial reforms may have affected perceptions of Israeli cohesion and readiness.
  • Regional diplomacy : There were signs of a possible Saudi–Israeli normalization deal; some experts argue Hamas (and backers like Iran) may have wanted to disrupt this process.

These deeper roots do not “justify” the attack or the war but help explain why such a drastic escalation became thinkable for the actors involved.

5. Different Viewpoints on “Who Started It”

Because your question sounds like something that comes up in forum or social media debates, it’s worth mapping how different sides answer “what caused the war between Israel and Palestine 2023.”

Common Israeli/Western government view

  • The war was caused by Hamas’s decision to launch a massive, deliberate attack on civilians and soldiers on October 7.
  • Everything afterwards (Israeli bombing, ground invasion, siege) is framed as a response aimed at self‑defense and counter‑terrorism.
  • Under this view, responsibility lies mainly with Hamas’s leadership for initiating large‑scale violence.

Common Palestinian/Hamas-supporting view

  • The war is part of a longer chain of Israeli occupation, settlement, blockade, and repeated assaults on Gaza; October 7 is seen as a brutal but “inevitable” eruption after years of oppression.
  • Hamas frames its attack as resistance against occupation, blockade, and violations around the Al‑Aqsa Mosque, and as a way to force prisoner releases and global attention.
  • Responsibility is often placed on Israel’s long‑term policies and refusal (in this view) to allow a viable Palestinian state.

International and analytical perspectives

Many academic and policy analyses try to hold both levels in view:

  • Immediate cause : Hamas’s October 7 attack and Israel’s subsequent decision to launch a full‑scale war.
  • Structural causes :
    • Prolonged occupation and blockade
    • Failure of peace processes and statehood negotiations
    • Violent cycles of reprisals
    • Deep mistrust and dehumanization on both sides

A political science–style framing (similar to what you might see in explainer videos or think‑tank papers) emphasizes “bargaining failures”: shifts in power, first‑strike advantages, uncertainty, and leaders’ incentives that make war more likely even though it is extremely costly.

6. 2023 War in a Nutshell (Story-Style Overview)

Imagine the situation in late 2023 like a dry forest:

  • Years of occupation and blockade had piled up like dead wood in Gaza and the West Bank.
  • Every new settlement, raid, rocket, and riot was another layer of dry brush.
  • Regional politics and internal crises in Israel added gusts of wind, shifting calculations and risks.

On October 7, Hamas lit a match with a surprise, large‑scale attack that tore through border defenses and shocked Israeli society. Israel responded with overwhelming military force, vowing to eliminate Hamas’s ability to fight, and the entire forest went up in flames, dragging in millions of civilians on both sides.

That is why, when people ask “what caused the war between Israel and Palestine 2023,” you get two overlapping answers:

  • The spark : Hamas’s October 7 assault and Israel’s declaration of war.
  • The firewood : decades of unresolved conflict over land, rights, security, occupation, blockade, and statehood.

7. “Latest News” and Ongoing Nature

Because you mentioned “latest news” and “trending topic,” it’s important to note: the war that began in 2023 did not end quickly and continued to shape regional dynamics and humanitarian conditions well beyond that year.

  • Fighting, ceasefires, and renewed offensives continued into 2024 and 2025, with operations across Gaza and significant regional spillover involving Iran‑aligned groups such as Hezbollah and the Houthis.
  • The conflict also affected global politics, protest movements, and debates on international law, war crimes, and civilian protection.

So, the 2023 war is best understood not as an isolated event, but as a major phase in an ongoing, unresolved conflict.

TL;DR (Bottom Summary)

  • The 2023 war started when Hamas and allied militants launched a large surprise attack on Israel on October 7, killing around 1,200–1,300 people and taking hundreds of hostages.
  • Israel declared war on Hamas and began a massive campaign in Gaza in response.
  • Hamas says it acted because of decades of occupation, blockade, violence against Palestinians, events at Al‑Aqsa, and Palestinian prisoners.
  • Israel and many other governments say the war was caused by a deliberate terrorist massacre, and that its operations are self‑defense.
  • Underneath the 2023 spark lie long‑term causes: occupation, Gaza’s blockade, failed peace processes, rising West Bank violence, and deep mutual mistrust.

Information gathered from public forums or data available on the internet and portrayed here.