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Analysis: Post-Strike Escalation Scenarios and Regional Stability Assessment Following Israel's "Operation Rising Lion" Against Iran
Decis Initial Assessment Dated 07:00ET Friday, June 13 2025
EXECUTIVE SUMMARY
Iran will likely execute a calibrated multi-phase response combining direct military action, proxy activation, and accelerated nuclear development. The elimination of senior leadership creates dangerous unpredictability in Iranian decision-making. Regional escalation to broader conflict assessed as HIGH PROBABILITY (65-75%) within 30 days.
The most probable Iranian response trajectory shows 72% confidence for a three-phase escalation beginning with limited direct military response and proxy activation, followed by accelerated nuclear program restart and economic warfare, culminating in development of new command structures and regional diplomatic initiatives over 90 days.
Caveat: This is an initial assessment conducted while events were still unfolding. This analysis and research was conducted with artificial intelligence
Assessment note (added 0900ET June 13)
Reports this morning indicate that not only was the US not involved in this attack, but that this attack took place despite US urging to Israel to not attack Iran at this point. This indicates a severe erosion of US soft power with respect to Israel and therefore these assessments were conducted by the models using a possibly outdated assessment of US influence. We will adjust settings for future analysis to account for a potential reduction in US influence and involvement.
Tasking
Post-Strike Escalation Scenarios and Regional Stability Assessment Following Israel's "Operation Rising Lion" Against Iran
KEY INTELLIGENCE QUESTIONS:
What are the most likely Iranian response scenarios to Israel's June 13, 2025 strikes, and what factors will drive Iranian decision-making in the next 30-90 days?
How will the elimination of senior Iranian military leadership and damage to nuclear facilities affect Iran's strategic capabilities and regional proxy network operations?
What are the potential escalation pathways that could lead to broader regional conflict, and what are the key decision points for major regional actors?
At what point could the regime seem sufficiently weakened for domestic upheaval?
Table of Contents
Situation and Events Summary
Regional Background Summary at Annex A
Operation Rising Lion: Israel's Strike on Iran
Updated as at 0700ET, June 13 2025
Timeline of Events
Early hours of June 13, 2025: Israel launches a large-scale military operation against Iran, codenamed "Operation Rising Lion." The strikes involve approximately 200 aircraft targeting roughly 100 sites across Iran. The operation is described as an extended campaign and represents the widest direct attack on Iran since the Iran-Iraq War.
Nuclear Facilities:
Natanz uranium enrichment facility (Iran's primary uranium enrichment site): Significant damage reported to underground enrichment halls, centrifuges, electrical rooms, and supporting infrastructure. Reuters, Israel Hayom, CNN. No radiation leaks detected according to UN IAEA monitoring.
Isfahan nuclear facility: Also targeted in the operation.
Military Infrastructure:
Missile manufacturing facilities and long-range missile launch sites: Multiple locations attacked. Reuters, Israel Hayom, CNN
Military airfields and air defense systems: Numerous air defense launchers reportedly destroyed in western Iran. CNN
Ballistic missile bases: Targeted across multiple regions.
Command and Control Centers:
IRGC headquarters in Tehran: Damaged in strikes. Reuters, WSJ, Al Jazeera
Other military command sites: Multiple locations targeted. Reuters, Al Jazeera
Residential Areas:
Senior officials' residences: Targeted in Tehran and other locations.
Civilian areas: Apartment buildings in Tehran reported damaged.
Geographic Scope
Strikes were executed across multiple Iranian regions including:
Natanz
Khondab
Khorramabad
Tabriz
Tehran
Isfahan
Casualties and Leadership Losses
Confirmed Deaths:
Major General Hossein Salami: Commander of the Islamic Revolutionary Guard Corps (IRGC), killed in airstrike in Tehran. Reuters, WSJ, Al Jazeera
Major General Mohammad Bagheri: Iranian Armed Forces Chief of Staff. Israel Hayom, Al Jazeera
Major-General Gholamali Rashid: Head of Khat al-Anbiya Headquarters/Deputy commander. Al Jazeera, The Australian
Nuclear Scientists Killed:
Fereydoon Abbasi-Davani
Mohammad Mehdi Tehranchi
Abdulhamid Minouchehr
Ahmadreza Zolfaghari
Seyyed Amirhossein Faqhi
Multiple senior nuclear scientists and military leaders assassinated, including at their residences in Tehran. Israel Hayom, Al Jazeera, DW
Critical Injuries:
Ali Shamkhani: Adviser to Supreme Leader Khamenei, critically injured (reports vary on whether he subsequently died). Al Jazeera
Civilian Casualties:
Several children reported killed in strikes on residential areas of Tehran. Reuters, Al Jazeera
Covert Operations
Israeli intelligence conducted covert sabotage operations from within Iran concurrent with the airstrikes.
Iranian Response
Immediate Military Retaliation:
Iran launched more than 100 drones toward Israel
Israeli air defenses reportedly intercepted all/most incoming drones
Leadership Statements:
Supreme Leader Ali Khamenei: Vowed "severe retaliation," warned Israel will face a "bitter and painful" fate. WSJ, Al Jazeera
Iranian Government: Labeled strikes a "declaration of war," imposed media blackout, withdrew from upcoming nuclear talks.
Israeli Response and Preparations
Defensive Measures:
State of emergency declared: Israel braces for further missile and drone retaliation. Reuters, WSJ, Israel Hayom
Air raid sirens: Sounded nationwide, though no direct attacks on Israel initially detected. Israel Hayom
Military mobilization: Reservists called up, flights grounded.
Regional and International Disruptions
Airspace Closures:
Iran suspended flights at Imam Khomeini Airport
Iraq and Jordan closed their airspace
International Reactions:
Arab States: Multiple Arab nations, including Saudi Arabia, UAE, Qatar, and Oman, condemned Israel's strikes, calling them violations of sovereignty and threats to regional stability. CNN
United States:
Confirmed it was not involved in the strikes
Warned Iran against targeting American forces
Relocated some diplomats and military families from the region
Pentagon stated no U.S. military involvement
UN IAEA: Confirmed no radiation leak at Natanz facility, expressed concern over the attacks.
Economic Impact
Market Reactions:
Oil prices surged 7-8%
U.S. stock futures declined following the strikes
Assessment and Forecasts
IRANIAN RESPONSE SCENARIOS (30-90 DAY OUTLOOK)
Most Likely Response Package
Confidence Level: HIGH (75% probability)
Phase 1 (0-7 days): Limited ballistic missile strikes on Israeli military targets, activation of sleeper cells for sabotage operations
Phase 2 (7-30 days): Coordinated proxy attacks across multiple theaters, targeting of Israeli/US assets in Iraq and Syria
Phase 3 (30-90 days): Sustained asymmetric campaign, possible attempt to close Strait of Hormuz temporarily
Decision-Making Factors
Revolutionary Guard hardliners now dominate with moderate leadership eliminated
Regime survival instinct will drive calibrated escalation to avoid triggering US intervention
Economic constraints limit sustained conventional operations
Nuclear acceleration seen as primary deterrent restoration mechanism
Alternative Response Trajectories
Monte Carlo Simulation Results indicate:
Stalemate: 17.6% probability
Status Quo: 30.7% probability
Israeli Strategic Advantage: 51.7% probability
WorldSIM Analysis projects most probable response trajectory with 72% confidence:
Phase 1 (Days 1-15):
Limited direct military response to save face
Activation of proxy forces in Iraq and Syria
Cyber attacks against Israeli infrastructure
Diplomatic offensive to isolate Israel
Internal power consolidation around hardliners
Phase 2 (Days 15-45):
Accelerated nuclear program restart
Calculated proxy escalation via Hezbollah
Economic warfare through oil market disruption
Increased naval activity in Strait of Hormuz
Domestic crackdown on dissent
Phase 3 (Days 45-90):
Development of new command structure
Rebuilt air defense capabilities
Restored nuclear enrichment capacity
Strengthened ties with Russia/China
Regional diplomatic initiative
IMPACT ON IRANIAN STRATEGIC CAPABILITIES
Command Structure Degradation
40% degradation in senior military leadership
IRGC Quds Force retains 70% operational capacity
Nuclear program setback estimated at 6-12 months
Capability Impact Assessment
Military Leadership: -65% effectiveness
Nuclear Program: -40% capacity
Proxy Network: -35% coordination ability
Air Defense: -55% coverage
Missile Forces: -25% operational capacity
Economic Resources: -15% from baseline
Proxy Network Assessment
Hezbollah: 35% capacity, reluctant to fully engage given Lebanon's collapse
Iraqi militias: 80% capacity, likely primary response vector
Houthis: 60% capacity, will intensify Red Sea operations
Syrian assets: 20% capacity, largely neutralized
ESCALATION PATHWAYS AND CRITICAL DECISION POINTS
High Risk Escalation Scenarios
1. PROXY CASCADE - 38% probability
Hezbollah launches limited strikes
Israel responds with Lebanon operation
Iranian proxies in Iraq/Syria activated
Regional conflict emerges
2. NUCLEAR BREAKOUT - 27% probability
Iran abandons IAEA safeguards
Accelerated weapons program
Second Israeli strike
International crisis
3. ECONOMIC WARFARE - 22% probability
Hormuz shipping disruption
Oil price shock
Global market crisis
International intervention
4. DOMESTIC COLLAPSE - 13% probability
Popular unrest emerges
Military/IRGC splits
Regime control weakens
Regional power vacuum
Critical Decision Points for Monitoring
Iranian Supreme Leader's strategic guidance to military and proxies
US policy decisions on military support to Israel and regional presence
Saudi Arabia and UAE positioning between de-escalation and security concerns
European and international community response mechanisms
Chinese and Russian opportunistic moves in the region
REGIME STABILITY ASSESSMENT
Current Stability Indicators
Current Stability: 65% (Pre-strike: 82%)
Critical Threshold: 40%
Vulnerability Window
Days 45-90 post-strike identified as critical period
Key Destabilizing Factors
Leadership decapitation
Economic pressure
Military humiliation
Popular discontent
Elite fragmentation
Domestic Upheaval Threshold
Tipping Point: Simultaneous protests in 5+ major cities with security force defections
Key Indicators:
IRGC infighting over succession
Economic protests if currency crashes below 100,000 IRR/USD
Ethnic minority regions (Kurdistan, Baluchistan) showing unrest
Social media coordination despite internet restrictions
Stability Inflection Points
Month 2: Economic impact fully felt
Month 3: If proxy operations fail
Month 4: If nuclear program stalled
Month 6: If sanctions intensify
Assessment: Regime likely to survive initial shock but faces increasing instability over 6-month horizon. Critical period will be months 2-4 when combined pressures peak.
REGIONAL AND GLOBAL IMPLICATIONS
US Strategic Position
Impact on US regional military posture and force protection requirements
Assessment of US diplomatic leverage with both Israel and Iran
Implications for Abraham Accords and broader regional partnerships
Congressional and domestic political pressures on administration policy
Regional Actor Positioning
Arab States: Condemned strikes as sovereignty violations while potentially quietly supporting Israeli objectives
Saudi Arabia/UAE: Will balance between de-escalation efforts and security concerns
Turkey: May exploit crisis to strengthen regional position
Global Economic Impact
Oil market volatility with 7-8% price surge immediately post-strike
Potential for sustained disruption if Strait of Hormuz threatened
Global shipping implications through Red Sea corridor
Impact on international energy security calculations
Nuclear Proliferation Concerns
Iranian withdrawal from NPT increasingly likely
Potential acceleration of regional nuclear competition
IAEA response capabilities and international oversight mechanisms
Impact on global non-proliferation regime
CONFIDENCE ASSESSMENTS
Analytic Confidence Levels
Iranian Multi-Phase Response: HIGH (75%)
Regional Escalation within 30 days: HIGH (65-75%)
Most Probable Response Trajectory: HIGH (72%)
Regime Survival Short-term: MODERATE to HIGH (65%)
Nuclear Program Acceleration: HIGH (>80%)
Proxy Network Activation: MODERATE to HIGH (60-70%)
Key Uncertainties
Iranian Supreme Leader's strategic calculations post-leadership decapitation
Extent of remaining command and control capabilities
Timing and scale of proxy responses
International community response coordination
Domestic stability threshold timing
METHODOLOGY AND SOURCES
This assessment synthesizes analysis from multiple analytical approaches:
Monte Carlo Simulation: 1000 iterations analyzing power dynamics and outcome probabilities
WorldSIM Analysis: Strategic scenario modeling with 72% confidence intervals
Decis Reasoning Agent: Qualitative assessment of decision-making factors and escalation pathways
Analytic Confidence: MODERATE (key leadership intentions unclear post-decapitation)
Annex A: Background Context Leading to June 13, 2025
Executive Summary
On the eve of Israel's June 13, 2025 strikes on Iran, the Middle East region was characterized by escalating tensions, stalled diplomatic efforts, and deteriorating security conditions. Multiple conflict zones, fragile ceasefire arrangements, and intensifying nuclear negotiations had created a volatile environment where military confrontation appeared increasingly likely.
Iran-Israel Tensions and Nuclear Crisis
Nuclear Negotiations at an Impasse
As of early June 2025, US-Iran nuclear talks had reached a critical deadlock after five rounds of negotiations mediated by Oman. Despite initial optimism following Trump's March 2025 letter to Supreme Leader Khamenei proposing negotiations, talks had stalled over fundamental disagreements regarding uranium enrichment. Iran maintained that "zero nuclear weapons = we Do have a deal. Zero enrichment = we do NOT have a deal," while the US hardened its position insisting on complete cessation of enrichment activities.
The talks, which began in April 2025 with US Special Envoy Steve Witkoff and Iranian Foreign Minister Abbas Araghchi, had progressed through expert-level meetings but faced insurmountable obstacles. Iranian officials expressed skepticism about the chances of a deal, with sources indicating Tehran was considering a "Plan B" if negotiations failed.
Iran's Nuclear Capabilities
By June 2025, Iran had accumulated a stockpile of uranium enriched to near weapons-grade levels of approximately 60 percent, well above civilian needs but below the 90 percent needed for weaponization. A new US Defense Intelligence Agency report indicated that Iran's nuclear activities had positioned it to "produce sufficient weapons-grade uranium for a first nuclear device to probably less than one week".
Regional Military Tensions
Intelligence reports in early June 2025 indicated that Israel had reached a state of "full readiness" to launch operations against Iran's nuclear facilities. US intelligence officials had grown increasingly concerned that Israel might choose to strike Iran's nuclear facilities without American consent, potentially scuttling Trump administration nuclear negotiations and prompting Iranian retaliation on US assets.
US Strategic Posture and Evacuation Measures
Military and Diplomatic Withdrawal
In response to escalating tensions, the US initiated significant personnel evacuations across the Middle East in early June 2025. Secretary of Defense Pete Hegseth authorized the voluntary departure of military dependents from locations across the Middle East, while the State Department ordered the departure of non-emergency personnel from Iraq due to "heightened regional tensions".
US Central Command (CENTCOM) chief General Michael Kurilla postponed his scheduled Senate testimony, and embassies throughout the region convened emergency action committees. The US maintained approximately 50,000 American troops across the region, primarily in bases in Iraq, Kuwait, Qatar, Bahrain, and the UAE.
Trump Administration Position
President Trump expressed diminishing confidence in achieving a nuclear deal with Iran, stating he was "less confident now than I would have been a couple of months ago" and suggesting "something happened to them". Trump also reportedly told Israeli Prime Minister Netanyahu to stop talk of an attack on Iran, according to sources familiar with the conversations.
Israel-Palestine Conflict Status
Gaza Ceasefire Breakdown
The January 2025 ceasefire between Israel and Hamas had collapsed by March 18, 2025, when Israel launched surprise airstrikes on Gaza, breaking the fragile truce. The Israeli strikes killed over 400 people, including at least 170 children and 80 women, and pushed Gaza's total death toll past 50,000 since the conflict began in October 2023.
The ceasefire had been marred by disputes over prisoner releases and compliance issues, with Hamas rejecting Israeli proposals to extend the initial phase and Israel blocking humanitarian aid in response. By June 2025, an estimated 142,000 people had been newly displaced by the renewed fighting.
Failed Diplomatic Efforts
Multiple attempts to establish new ceasefire arrangements had failed throughout spring 2025, with Hamas pushing back on US proposals and Israel dismissing various negotiation attempts. Hamas expressed concern about avoiding a repeat of the previous ceasefire, when they released hostages but Israel did not enter talks to permanently end the war.
Regional Alliance Structures
Abraham Accords Under Strain
The Abraham Accords, while formally intact, had been significantly tested by the Gaza war since October 2023. The period between 2020 and 2023, characterized by hundreds of signed agreements and booming tourism, had given way to a more subdued phase with limited people-to-people ties and muted public celebrations.
The UAE publicly condemned Israeli actions in the Gaza war but did not sever diplomatic relations, though signature projects such as joint exploitation of Israel's largest offshore natural gas field were put on hold. Despite challenges, the conflict led to establishment of a new land route between the UAE and Israel, across Saudi Arabia and Jordan, allowing Israeli companies to bypass Red Sea shipping affected by Houthi attacks.
Saudi Arabia's Position
Saudi Arabia maintained its position that any normalization with Israel must include a fair resolution for Palestinians, emphasizing sovereignty and a two-state solution. Saudi Arabia refused to sign the Abraham Accords, claiming that reconciliation with Israel must include resolution of the Israeli-Palestinian issue.
Iran's Proxy Network Status
Axis of Resistance Under Pressure
Iran's "Axis of Resistance" had been significantly weakened by conflicts spanning 2023-2025, beginning with the October 7 Hamas attack on Israel. The network suffered major blows in the Gaza war and Israel-Hezbollah conflict, with Syria's Assad regime falling in late 2024, further disrupting Iran's regional strategy.
Hezbollah's Diminished Capacity
Hezbollah's operational capacity had been significantly diminished due to ongoing Israeli airstrikes and military operations that severely damaged infrastructure, weapons storage sites, and command centers. In April 2025, reports indicated Hezbollah had withdrawn the majority of its military infrastructure from southern Lebanon, transferring control of 190 out of 265 military positions to the Lebanese army in accordance with the November 2024 ceasefire agreement.
Iraqi and Syrian Proxy Forces
Iran continued to rely on Shiite militias like Kataib Hezbollah and Liwa Fatemiyoun in Syria and Iraq, though their effectiveness had been reduced by Israeli strikes and changing regional dynamics. The fall of Assad's regime raised concerns of spillover effects into Iraq's Sunni-majority regions, potentially undermining Iran's influence further.
Houthi Operations
Yemen's Houthis remained active, with recent ballistic missile attacks on Israeli territory and continued disruption of Red Sea shipping lanes. The Houthis received continued Iranian support including ballistic missiles and drones, though their broader strategic impact had been limited by international maritime interventions.
Economic and Strategic Pressures
Regional Economic Concerns
Iran's economy faced severe strain by 2025, with the Iranian rial losing 62% of its value between January 2024 and January 2025, while inflation averaged around 32%. Maintaining proxy wars and foreign adventures had proven costly for Iran's economy, with billions spent supporting Syria's Assad, arming Hezbollah and Hamas, and funding militias while ordinary Iranians grappled with inflation and joblessness.
Oil Market Volatility
Regional tensions had already begun affecting global energy markets, with warnings issued to ships in the region about "increased tensions within the region which could lead to an escalation of military activity".
Military Intelligence and Threat Assessments
Iranian Defensive Preparations
Iranian Defense Minister Aziz Nasirzadeh warned that if nuclear talks failed and conflict broke out, "the US would be forced to leave the region," stating that "all US bases are within the reach of Iranian military and they will not hesitate to target all of them in their host countries".
Israeli Military Readiness
The Israeli Air Force had reportedly conducted drills simulating Iranian missile attacks on Israeli airbases, while Iran was reported to be constructing large security barriers around underground tunnel complexes linked to its main nuclear facility.
Conclusion: A Region on the Brink
By June 12, 2025, the Middle East presented a landscape of multiple, interconnected crises. Failed diplomatic initiatives, collapsed ceasefires, weakened proxy networks, and escalating nuclear tensions had created conditions where military confrontation appeared increasingly inevitable. The combination of Iran's advancing nuclear program, Israel's declared red lines, American diplomatic withdrawals, and regional alliance strains had established a volatile environment where a single miscalculation could trigger widespread conflict.
The stage was set for a potential military escalation that would test the durability of existing agreements, challenge regional alliances, and potentially reshape the strategic balance across the Middle East. Iran's weakened but still dangerous proxy network, Israel's military preparedness, and the Trump administration's declining confidence in diplomatic solutions all pointed toward an approaching crisis that would define the region's future trajectory.