What would happen if Tehran was cut off from the rest of the country? Or if the country’s leadership was decisively decimated? According to Western strategic analysts this would spell the end of the regime. In the eyes of Tehran however, this is merely “Scenario A”, on which it has engineered its defense for the past twenty years.

Based on the model of the decentralized “Mosaic Defense”, Iran has transformed itself into a series of semi-autonomous “islands” of resistance, capable of fighting even without central direction. Modelled, after a fusion of Mao Zedong’s military-political doctrine highlighted in “On Protracted War” (1938), and the strategy of the “fourth successor” developed natively by Iran post-2005, Tehran doesn’t rely on it’s technological supremacy to secure an edge in this conflict, but rather in an asymetric war of attrition, meant to turn it’s enemies military superiority into a costly long-term strategic deadlock.

Iranian Foreign Minister Abbas Araghchi made a statement outlining that Tehran has been studying American wars for the past 20 years, and reverse engineering a system that could could survive and continue fighting even if it suffers crushing losses, like the loss of the capital. This is the “Mosaic Dogma”.

At the center of this strategy is the acceptance that in a war with Washington and/or Tel Aviv, Iran will most likely lose a considerable number of its top leadership, critical infrastructure, even central control over the country. Nevertheless, it must be in a position to continue the war.

What Exactly is the “Mosaic Defense”

The strategy of the Mosaic Defense was developed by the Islamic Revolutionary Guard Corps (IRGC) under the leadership of the Mohammad Ali Jafari, who was the head of the corps between 2007 and 2019. The principles underlying the defensive plan revolve around organising forces into multiple regional and semi-autonomous command structures that can work even if central authority is incapacitated.

If a single piece of the Mosaic is struck, the rest can continue to operate independently.

The Lessons from the Fall of Saddam Hussein

This doctrine was developed following the US invasion of Afghanistan (2001) and Iraq (2003).

The speed with which the Hussein regime collapsed, left a marked impression on Iranian leadership and directly affected the direction of it’s strategic planning. The Iraq War demonstrated the impact that a militarily overwhelming US invasion had when opposed by a centralized state —The sudden and decisive collapse of that regime. Tehrans response is a modularization of power.

How the Doctrine Works:

In the event of an armed escalation, the roles for each department are pre-determined as are the strategic assets to be deployed:

  • The regular army (Artesh) will sustain the initial brunt of the enemy’s attack and will delay the enemy advance.
  • The Revolutionary Guard and Basij will transform regular military engagements into attrition warfare through traps, localized resistance and sabotage of enemy assets.
  • Naval and missile forces will focus on closing off and controling the Strait of Hormuz, burdening the enemy supply lines and exacting a punishing financial toll.
  • Proxy allies (Hezbollah, Houthis, Hamas) will conduct tactical strikes across the Middle East, ensuring that the conflict is spread across a wider area, deflecting it from Iranian soil.
  • Tactical doctrine will favour Shahed drones, which are cheap and mobile and will require far more expensive interceptor missiles to take down.

Mao Zedong, On Protracted War

Iran’s doctrine closely follows the 1938 military-political theory developed by Mao Zedong, which presented ways in which a weaker, and in the case of China at the time, agrarian, society can defeat a much stronger and industrial power (the US both then and today).

The approach centres around absorbing the initial shock, exhausting the enemies supply lines, and suffocating the enemy’s will to fight, gradually leading to a change in the balance of power.

The Enigma of the “Fourth Successor”

The flexibility of Iran’s approach to decentralization lies in it’s preparedness for sustained losses in it’s highest leadership echelons. The former Supreme Leader Ali Khamenei had given instructions that up to four pre-determined successors should be in place for each key military and political position.

This means that communication blackouts from central command location do not distrupt military operations. When one leader is incapacitated, the next one simply takes his place continuing down the line of succession. This allows Tehran strategic depth to “self-heal” from continuous engagements.

Why This Matters Today

The significance of this strategem cannot be overstated. While the US and Israel have relied on a “beheading” approach by targetting leadership, Iran has designed a state that can effectively function without a head.

In effect, Tehran’s strategy was not designed for a brief exchange of blows, but for a battle of survival, where the death of a leader, even Khamenei himself, does not signal the end, but rather the activation of the next layer of the “mosaic.”

The Expansion of the “Mosaic Doctrine” in the Middle East

The application of the “Mosaic Doctrine” is no longer a theoretical exercise on paper, but a living reality unfolding across nearly every front in the Middle East.

Below is an analysis of the three core pillars that show how Tehran is implementing this doctrine amid current developments:

1. The “Decentralized” Survival of Hezbollah and Hamas

Despite Israel’s devastating strikes on Hezbollah’s leadership (the assassinations of Nasrallah and his successors), the organization continues to fire rockets and mount resistance in southern Lebanon. This is the “Mosaic” in action:

  • Local Autonomy: Field units have been trained to operate without orders from Beirut.
  • Resilience Against “15-Day Paralysis”: The doctrine anticipated that even if all communications are severed, local commanders have pre-assigned objectives for weeks.

2. The “Drone War” as Economic Hemorrhage

The use of Shahed drones by the Houthis in the Red Sea, and their production within Iran, represents the “economic dimension” of the doctrine:

  • Asymmetric Attrition: Iran forces Israel and the US to spend billions on interceptor missiles (Arrow, Patriot) to shoot down “cheap” Iranian weapons.
  • The Strategy of Patience: Tehran is betting that the West will grow weary of the cost and political pressure of a prolonged war, while Iran itself has adapted its economy to conditions of “wartime endurance.”

3. “Peripheral Dispersal” (Forward Defense)

Iran does not wait for war to reach its borders. The “Forward Defense” doctrine means that Tehran’s first line of defense lies in the Mediterranean, the Red Sea, and Iraq.

  • Multiple Fronts: If Israel strikes Iran directly, the response does not come from its territory alone, but from 4–5 different points simultaneously, dispersing the adversary’s defensive capacity.

Iran is not pursuing “victory” in the traditional sense, such as the seizure of territory or the destruction of an enemy army. It is pursuing non-defeat. As long as the system remains standing and continues to impose costs, the doctrine is considered a success.