Mosaic Defence Architecture

Iran's Mosaic Defence Architecture has become the defining uncertainty of the 2026 Ceasefire. With Mojtaba Khamenei reported unconscious and unable to issue orders, the 31 semi-autonomous IRGC ground force divisions may each be interpreting the Ceasefire differently. Some have continued strikes while others stand down, meaning compliance depends not on one decision but on 31 separate commanders .

The doctrine emerged from Iran's experience in the Iran-Iraq War, during which centralised command proved catastrophic when senior officers were killed. After the assassination of IRGC commanders in the opening days of the 2026 conflict, Iran formally activated the structure: the IRGC was restructured into 31 provincial units, each authorised to Conduct strikes without central authorisation. Regional commanders hold operational independence as a deliberate design, not a breakdown of discipline .

The architecture makes post-conflict verification nearly impossible. A Ceasefire is notionally in effect, but the framework assumes a single sovereign command can enforce it. If 31 commands are each reading the terms through their own security calculus, there is no throat to grab if a unit fires. US and Israeli planners treated the decapitation of IRGC leadership as a war-winning move; the mosaic doctrine was designed precisely to survive that.