Look at the secularization movement imposed on Turkey through sheer force, by Ataturk. Even after many more decades of Islamic imposed secularization than we have invested to the nations where we left sizable occupation forces, they are reverting back to Islamism.
To think that even with force that we could overcome the deep seated Islamic orientation which makes Kafirs hated and Kafirs occupying Dar al Islam to impose Democracy, which means a completely different thing to Muslims than it does to us, is unrealistic.
To use an analogy of flight.
Helium balloons or hot air balloons fly.
Airplanes develop lift.
Rockets power their way into the heavens and when they run out of power there is nothing to prevent them falling back to Earth like a rock.
Germany, Japan, Korea have societies and cultures which were able to use the guidance and structure and impetus of the US military and US inspired democracy to soar on their own after a while.
But, the minute US power was no longer there to keep hope alive for a US style Democracy in the Middle East it fell back to Earth like a rock or should I say, Iraq.
Because Democracy is incompatible with Islam.
Amir Taheri: "Islam Is Incompatible With Democracy"