How Iran closed the Mosul 'horseshoe' and changed Iraq war

Reuters

By Dominic Evans, Maher Chmaytelli and Patrick Markey

In the early days of the assault on Islamic State in Mosul, Iran successfully pressed Iraq to change its battle plan and seal off the city, an intervention which has since shaped the tortuous course of the conflict, sources briefed on the plan say.

The original campaign strategy called for Iraqi forces to close in around Mosul in a horseshoe formation, blocking three fronts but leaving open the fourth - to the west of the city leading to Islamic State territory in neighboring Syria.

That model, used to recapture several Iraqi cities from the ultra-hardline militants in the last two years, would have left fighters and civilians a clear route of escape and could have made the Mosul battle quicker and simpler.

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