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ConflictMiddle EastProxy War2011–presentReviewed Apr 5

Post-Assad Syria

Post-Assad Syria remains fragmented, with sectarian violence and external strikes keeping the state unstable

Escalation Trace

Post-Assad Syria remains fragmented, with sectarian violence and external strikes keeping the

5 phases · 32 events
Apr 2025Apr 2026

Theater

Focus Region

Middle East

Geo-Linked Events

40

2011

Arab Spring protests in Syria escalated into civil war after Bashar al-Assad's regime responded with lethal force, including chemical weapons and barrel bombs against civilian populations.

2013

Jabhat al-Nusra, al-Qaeda's Syrian affiliate and the predecessor to HTS, emerged as a dominant armed faction in northern Syria, complicating Western efforts to support moderate opposition groups.

2014

ISIS declared a caliphate across large swaths of Syria and Iraq; the US deployed roughly 900 troops and partnered with the Kurdish YPG-led SDF to combat ISIS, establishing a lasting US military footprint in northeastern Syria.

2017

HTS consolidated control over Idlib province after outmaneuvering rival factions; simultaneously, the SDF captured Raqqa from ISIS, cementing Kurdish governance over northeastern Syria's oil and agricultural resources.

2019

ISIS's territorial caliphate was destroyed at Baghouz, but remnant cells continued insurgent attacks across Syria; Turkish military operations repeatedly targeted SDF positions, straining the US-Kurdish alliance.

2024

An HTS-led offensive collapsed the Assad regime in 11 days in December after Russia, Iran, and Turkey withdrew their protective backing; Bashar al-Assad fled, ending 54 years of Assad family rule and over 13 years of civil war that killed 657,000 and displaced 13 million.

2025

With Assad gone, rival armed actors — HTS as the new governing authority, the SDF in the northeast, Turkish-backed Syrian National Army factions, remnant ISIS cells, and Israeli air operations targeting weapons depots — compete for influence, leaving Syria's political future unresolved.

HTS: Qatar (historical funding), Turkey (political backing).

SDF: US (primary patron — SDF is US proxy for ISIS containment). TURKISH-BACKED SNA: Turkey (direct control).

ISRAEL: Conducting 400+ airstrikes since Assad fall Dec 2024 to destroy Syrian military infrastructure, weapons depots, chemical weapons stockpiles.

RUSSIA: Lost naval base Tartus and air base Hmeimim — strategic blow.

Syria remains live proxy battlespace even after Assad's fall. US-SDF relationship: SDF controls ~30% of Syrian territory including most oil fields — US keeps troops there explicitly to prevent ISIS resurgence and deny Iran land corridor to Lebanon. Turkey-SNA: Turkish direct proxy aimed at suppressing Kurdish autonomy. Israel's post-Assad airstrike campaign (600+ strikes in weeks) destroyed Syrian military capacity to prevent Iranian re-entry. HTS (formerly al-Qaeda affiliate Jabhat al-Nusra) now governs Damascus — presents dilemma for Western designations.

14-year proxy war 'resolved' Assad question but created new multi-actor territorial fragmentation. Russia lost strategic Mediterranean naval access. Iran's land corridor to Hezbollah disrupted. US-Turkey NATO tensions acute over Kurdish policy. 10,672 killed since Assad fall per SOHR.

Apr 5, 2026Military or coercive actionNarrowing

Houthis Claim Coordinated Strike with Iran and Hezbollah on Israel

The Houthis publicly claimed a joint strike with Iranian state forces and Hezbollah against targets in Israel, including Ben Gurion Airport, using a ballistic missile and drones.

Apr 4, 2026Diplomatic exchangeWidening

US-Iran Ceasefire Negotiations Collapse Over Incompatible Demands

Active ceasefire negotiations between the US and Iran have broken down, with Iran refusing to engage US officials through the Pakistan-led mediator committee and dismissing US terms as unacceptable.

Apr 4, 2026Information-cyberNarrowing

Islamic State Ecosystem Expands Drone-Enabled Lone-Actor Attack Capability

The article identifies a cross-regional pattern in which Islamic State-linked propaganda and instructional material are helping lone actors and small cells adopt commercial drones for surveillance, weapons transport, and attempted attacks.

Apr 4, 2026Military or coercive actionWidening

US-Israeli Strikes on Bushehr Nuclear Plant and Iranian Petrochemical Facilities

US-Israeli strikes reportedly hit Iran's Bushehr nuclear plant multiple times and also targeted petrochemical facilities, expanding the campaign from military-nuclear containment into economically significant infrastructure.

Apr 4, 2026Military or coercive actionNarrowing

Iran Endures U.S.-Israeli Air Campaign and Seeks Negotiated Off-Ramp

The article describes an ongoing U.S.-Israeli bombing campaign against Iran that, by the author's account, has failed to topple the Islamic Republic or sever leadership continuity.

Apr 4, 2026Military or coercive actionWidening

US-Israeli Strikes Sustain Air Superiority and Target Iran's Reconstitution Pathways

US and Israeli forces continued nationwide strikes in Iran while targeting air defenses, missile-supporting petrochemical infrastructure, state broadcasting, and the Shalamcheh border crossing.

Apr 3, 2026Military or coercive actionMixed

Iran-Israel Missile Exchange and U.S. Infrastructure Threat Escalation

Iran launched a new missile salvo against Israel on April 3, 2026, with Israeli air defenses activated in response. Simultaneously, U.S. President Trump publicly warned that U.S. forces had yet to begin destroying Iran's remaining infrastructure, naming bridges and energy assets as targets.

Mar 31, 2026Information-cyberNarrowing

Netanyahu Passover Address Claims Systematic Defeat of Iran's Axis

Netanyahu delivered a televised national address framing the joint Israel-U.S. military campaign as having successfully dismantled Iran's nuclear program, ballistic missile capability, proxy network, and senior leadership.

Mar 30, 2026Military or coercive actionMixed

U.S.-Israeli Military Campaign Against Iran — One-Month Assessment

One month into a joint U.S.-Israeli military assault on Iran, significant tactical damage has been inflicted — including the killing of Supreme Leader Khamenei, destruction of Iran's air force and navy, and degradation of its missile and nuclear programs — yet Iran's regime has survived, maintained Hormuz disruption, and imposed severe global economic costs.

Mar 30, 2026Military or coercive actionWidening

U.S.-Israeli War on Iran Triggers Chinese Strategic Reassessment

A U.S.-Israeli military campaign against Iran has escalated into a regional conflict, threatening Strait of Hormuz transit and disrupting global energy markets.

Mar 29, 2026Institutional reformNarrowing

IRGC-Bonyad Patronage Complex Sustains Regime Cohesion Amid Israeli-U.S. Military Campaign

Despite a sustained Israeli and American air campaign degrading Iran's military leadership and infrastructure, the regime's economic patronage network — anchored in the IRGC's quasi-corporate role and tax-exempt religious foundations — continues to bind millions of loyalists through material incentives.

Mar 28, 2026Military or coercive actionNarrowing

Houthis Launch Ballistic Missiles at Southern Israel, Enter Iran-Led Regional War

On March 28, 2026, the Houthis (Ansar Allah) launched two ballistic missiles at southern Israel, both intercepted, formally entering the active theater of Iran's regional war against the US and Israel.

Mar 27, 2026OtherWidening

UN Commission Documents 1,707 Killings in Syria's Sweida Sectarian Violence

A UN Independent International Commission of Inquiry report formally attributed the July 2025 mass killings in Sweida Province to Syrian government forces and allied tribal fighters, with the Druze Sweida National Guard also implicated in retaliatory violence against Bedouin civilians.

Mar 14, 2026Military or coercive actionMixed

United States Reallocates JASSM-ER Stockpiles to Iran Campaign

The United States is reportedly preparing to commit nearly its full inventory of JASSM-ER long-range cruise missiles to ongoing operations against Iran, drawing from stockpiles previously assigned to other theaters.

Mar 9, 2026Military or coercive actionWidening

Joint US-Israeli Military Operation Against Iran and Succession of Mojtaba Khamenei

A joint American-Israeli military operation has been targeting Iran's coercive apparatus — IRGC commanders, missile sites, and military installations — for approximately three weeks.

Mar 1, 2026Institutional reformMixed

Death of Iranian Supreme Leader Ali Khamenei and Succession Crisis

Supreme Leader Ali Khamenei died on March 1, 2026, following U.S. and Israeli strikes in February 2026 that killed him and other senior officials while massively degrading Iran's military, nuclear, and security apparatus.

Mar 1, 2026OtherMixed

Death of Ali Khamenei and Appointment of Mojtaba Khamenei as Supreme Leader

Ali Khamenei died on March 1, 2026, following a February 2026 U.S.-Israeli strike campaign that killed him alongside senior officials and massively degraded Iran's military, air defenses, missile production, and nuclear facilities.

Feb 28, 2026Military or coercive actionMixed

U.S.-Israel Strikes Kill Khamenei, Trigger Iranian Leadership Succession Amid Ongoing War

Beginning February 28, 2026, the United States and Israel launched coordinated strikes against Iran, killing Supreme Leader Ali Khamenei and multiple senior officials, with Mojtaba Khamenei subsequently installed as the new supreme leader by a clerical council.

Feb 28, 2026Military or coercive actionWidening

U.S. Expends 850+ Tomahawk Missiles in Operation Epic Fury

In the first month of Operation Epic Fury, a joint U.S.-Israeli military campaign against Iran, the United States fired at least 850 Tomahawk cruise missiles — the largest single-conflict expenditure on record.

Feb 1, 2026Military or coercive actionMixed

U.S.-Israeli Campaign Against Iran Triggers Strait of Hormuz Crisis and Third Islamic Republic Transition

Coordinated U.S.-Israeli airstrikes killed Supreme Leader Ali Khamenei and senior Iranian military and political leaders, triggering a succession to Mojtaba Khamenei and a comprehensive Iranian asymmetric counteroffensive.

Jan 24, 2026Military or coercive actionNarrowing

Syria Closes Masnaa Crossing After Israeli Warning

Israel's evacuation warning and threatened airstrikes compelled Syria to temporarily shut the Masnaa/Jdeidet Yabous border crossing with Lebanon.

Jan 19, 2026Military or coercive actionWidening

Drone Attacks on Syrian Army and SDF-US Base Near Iraqi Border

Iran-aligned factions in Iraq launched drone attacks against Syrian army bases near the Iraqi border and a northeast Syrian base hosting US forces. Syria's army intercepted most drones but acknowledged assessing response options, signaling potential escalatory pressure.

Jul 18, 2025Military or coercive actionWidening

US-Israeli Strikes Destroy 70% of Iran's Steel Production Capacity

Multiple waves of US and Israeli airstrikes have disabled Iran's two largest steel plants, with Netanyahu claiming 70 percent of Iranian steel production capacity has been destroyed. Steel is a dual-use strategic material essential to Iran's missile, drone, and shipbuilding programs.

Jul 1, 2025Military or coercive actionWidening

Iran-Israel-U.S. War Spills into Gulf, Exposing Gulf State Security Vulnerability

Iranian missiles and drones have struck Gulf state territory — targeting civilian populations, critical infrastructure, and economic corridors — as a consequence of those states hosting U.S. military bases.

Jun 22, 2025OtherWidening

Iran Rejects Ceasefire Framework, Conditions Resolution on Guarantees and Compensation

Iranian Foreign Minister Araghchi publicly rejected a ceasefire framing in favor of a full regional cessation of hostilities, while characterizing US-Iran contacts as informal message exchanges rather than negotiations.

Jun 20, 2025Military or coercive actionMixed

Iran Strikes Prince Sultan Air Base, Destroys U.S. Aircraft

Iranian ballistic missiles and drones struck Prince Sultan Air Base in Saudi Arabia, heavily damaging or destroying a U.S. E-3 AWACS radar aircraft and multiple KC-135 refueling tankers, wounding approximately twelve troops.

Jun 20, 2025Military or coercive actionWidening

Iran-Linked Factions Escalate Attacks Across Iraq Amid US-Israeli War on Iran

Iran-backed Iraqi armed groups under the Islamic Resistance in Iraq umbrella have launched sustained drone and missile attacks on US military and commercial targets across Iraq, including in Erbil, Baghdad, and Basra, prompting US and Israeli retaliatory strikes on PMU positions.

Jun 19, 2025Military or coercive actionMixed

US Destroys Iran's B1 Tehran-Karaj Highway Bridge

US forces destroyed the B1 highway bridge connecting Tehran to Karaj, Iran's two most populous urban centers, killing eight and injuring 95. President Trump publicly celebrated the strike and threatened further attacks on civilian infrastructure including desalination plants.

Apr 23, 2025Military or coercive actionMixed

US-Israeli Military Campaign Against Iran: Ceasefire Signaling and Strait of Hormuz Disengagement Declaration

The United States and Israel are conducting a combined military campaign described as 'systematically crushing' Iranian government capacity. Iran has signaled readiness for a ceasefire contingent on firm security guarantees against future strikes.

Apr 16, 2025Military or coercive actionWidening

IRGC Issues Threat Against US Corporate Infrastructure in the Gulf

The IRGC publicly listed 18 US technology and manufacturing companies operating in the Gulf — including Microsoft, Google, Apple, Intel, IBM, and Boeing — threatening strikes against them in retaliation for continued US military operations against Iran.

Apr 10, 2025Military or coercive actionMixed

U.S. Airstrikes Target Iranian Infrastructure; Iran Strikes Gulf State Facilities

U.S. airstrikes destroyed Iran's largest bridge and a major public health facility, while U.S.-Israeli strikes continued against Iranian targets. Iran retaliated by striking a Kuwaiti desalination plant and oil refinery, and debris from an intercepted missile caused UAE gas facility closures.

Apr 7, 2025Military or coercive actionWidening

Iran-Aligned Militia Drone Attack on Syrian Bases Near Iraqi Border

Unidentified actors launched a large-scale drone attack on multiple Syrian military bases near the Iraqi border, with Syria claiming most UAVs were intercepted. Simultaneously, Syria disclosed the discovery of Hezbollah smuggling tunnels on the Lebanese border.

Apr 4, 2025Military or coercive actionMixed

US-Israel-Iran War: Infrastructure Targeting Phase and Strait of Hormuz Blockade

US and Israeli forces have degraded approximately 70 percent of Iran's steel production capacity and struck its tallest bridge, while Iran has effectively blockaded the Strait of Hormuz, cutting off roughly one-fifth of global oil and gas transit.

Apr 4, 2025Military or coercive actionMixed

US-Iran-Israel Infrastructure War Escalation with Hormuz Blockade

The US-Israeli-Iran war has escalated into systematic mutual infrastructure strikes targeting steel plants, bridges, power grids, refineries, and desalination complexes across the region. Iran has virtually closed the Strait of Hormuz, blocking approximately 20 percent of global oil and gas transit.

Apr 4, 2025Military or coercive actionMixed

Trump Threatens Hormuz Seizure and Iranian Power Infrastructure

President Trump publicly declared US intent to forcibly reopen the Strait of Hormuz and capture Iranian oil revenues, while separately threatening Iranian civilian power plants with no stated timeline for ending hostilities.

Apr 4, 2025Diplomatic exchangeNarrowing

Zelensky-Erdogan Istanbul Security Talks

Zelensky's visit to Istanbul reinforces Turkey's role as a broker between Ukraine and Russia while deepening Ankara-Kyiv coordination on Black Sea security.

Apr 4, 2025Military or coercive actionWidening

Protesters Target UAE Embassy in Damascus

Protesters attacked and vandalized the UAE Embassy and the residence of its mission head in Damascus, prompting coordinated condemnation from Gulf states and concern from the United States.

Apr 3, 2025Military or coercive actionMixed

F-15E Strike Eagle Downed Over Iran in First US Combat Aircraft Loss to Hostile Fire

An F-15E Strike Eagle — a two-seat aircraft — was shot down over Iran, marking the first confirmed loss of a US warplane to hostile fire in the US-Iran war that began February 28. One crew member was recovered; the second remained missing with Iran actively searching to capture them.

Apr 2, 2025Military or coercive actionMixed

Strait of Hormuz Closure Triggers Historic Energy Supply Disruption

Iranian attacks on regional energy infrastructure and restrictions on Strait of Hormuz shipping have removed over 12 million barrels of oil from global supply since the start of a U.S.-Israel war on Iran.

Apr 2, 2025Diplomatic exchangeWidening

Trump Prime-Time Address on Iran War Reveals Strategic Ambiguity

Trump's first major public address on the Iran war in over a month failed to provide a clear endstate, timeline, or operational logic, instead offering contradictory claims of victory alongside announcements of continued heavy strikes over the next two to three weeks.

Apr 1, 2025Military or coercive actionWidening

U.S.-Israel Military Campaign Against Iran Enters Second Month with Ground Invasion Under Consideration

A U.S.-Israeli military campaign against Iran, launched February 28, has entered its second month with no resolution. Iran has sustained retaliatory strikes on U.S. Gulf bases, including damage to an E-3 Sentry AWACS and KC-135 tankers at Prince Sultan Air Base in Saudi Arabia.

Apr 1, 2025Military or coercive actionMixed

US Third Carrier Group and Amphibious Forces Deployed to Gulf Amid Operation Epic Fury

The United States has deployed a third aircraft carrier (USS George HW Bush), two Amphibious Ready Groups, and two Marine Expeditionary Units (~4,700 Marines) to the Middle East, supplementing 50,000 already-stationed troops during the second month of 'Operation Epic Fury.' The USS Abraham Lincoln CSG is conducting daily combat sorties against Iranian targets.

Apr 1, 2025Military or coercive actionMixed

U.S.-Israeli Military Campaign Against Iran Enters Second Month

A U.S.-Israeli air campaign against Iran, initiated in late February 2025 following the June 2024 destruction of Iran's nuclear enrichment facilities, has entered its second month without achieving its primary objective of regime change.

Mar 31, 2025Alliance or treaty shiftNarrowing

Syria Declares Conditional Neutrality in U.S.-Israel-Iran Conflict

Syrian President Ahmed al-Sharaa formally articulated Syria's neutrality in the U.S.-Israeli conflict against Iran at a Chatham House event in London, conditioning involvement solely on direct aggression against Syrian territory.

Mar 31, 2025Military or coercive actionWidening

IRGC Launches Child Recruitment Campaign Amid US-Israel War

The IRGC formally announced a recruitment drive targeting Iranians aged 12 and above as volunteer fighters, operationalizing children into checkpoints, patrols, and intelligence tasks during active US-Israeli strike campaigns.

Mar 30, 2025Military or coercive actionMixed

US-Israel Military Campaign Against Iran Enters Fifth Week with Multi-Theater Escalation

US-Israeli forces have conducted sustained strikes on Iranian energy infrastructure, weapons development sites, educational facilities, and residential areas, killing over 2,076 Iranians including 216 children.

Mar 30, 2025Military or coercive actionMixed

US-Iran Conflict: Military Buildup, Negotiation Stall, and Strait of Hormuz Contingency Planning

The United States is engaged in a 10-day pause in strikes on Iran following significant degradation of Iranian military capabilities, while simultaneously building up military forces in the Middle East.

Mar 1, 2025Military or coercive actionMixed

UK Military Deployment to Gulf Following US-Israeli Strikes on Iran

Following US-Israeli strikes on Iranian targets in late February, Iran attacked Gulf infrastructure and disrupted Strait of Hormuz shipping, triggering a UK defensive military response.

Feb 28, 2025Military or coercive actionWidening

U.S.-Israeli Military Campaign Against Iran Disrupts Global Energy Flows and Compounds China's Economic Crisis

The United States and Israel launched coordinated missile strikes against Iran on February 28, killing Supreme Leader Ali Khamenei and triggering an ongoing conflict that has partially closed the Strait of Hormuz.

Feb 28, 2025Military or coercive actionMixed

US-Israel Military Operation Against Iran with IRGC Retaliation

The United States and Israel launched coordinated strikes against major Iranian cities including Tehran on February 28, triggering a 33-day near-total internet blackout across Iran.

Feb 28, 2025Military or coercive actionMixed

US-Israeli Air Campaign Degrades Iranian Conventional Military While Asymmetric Capacity Persists

A sustained US-Israeli air campaign launched February 28 has struck over 13,000 targets in Iran, killing Supreme Leader Khamenei and much of the senior leadership, and destroying an estimated 80% of Iranian air defense systems.

Jan 20, 2025Military or coercive actionWidening

Syrian Transitional Government Offensive Against SDF Triggers IS Containment Collapse

Ahmad al Sharaa launched a military offensive against the Kurdish-led Syrian Democratic Forces in January 2025, triggering Arab tribal defections and the loss of approximately 80 percent of SDF-held territory.

Military or coercive actionNarrowing

Israel Conducts Weekend Air Campaign Against Iranian and Hezbollah Military Infrastructure

Israel claims to have executed a large-scale air campaign against military targets in Iran and Lebanon, including Iranian air defense systems, ballistic missile production facilities, IRGC weapons storage, and Hezbollah command and launch infrastructure.