What are the solutions to the Syrian crisis?

Russia and Turkey should withdraw from northern Syria

Question: What are the solutions to the Syrian crisis?
Position‹3 of 4›: The internationalisation of the conflict must end
Argument‹2 of 4›: Russia and Turkey should withdraw from northern Syria

For the past couple of years, Russia and Turkey have been using Idlib, Northern Syria- as their battleground. It is important that this ends immediately.

The argument

Russian and Turkish forces have been clashing, turning the area of Northern Syria into a warzone and causing a massive humanitarian crisis. Russia backs the Assad regime, while Turkey backs the opposition rebels, and both are funneling military forces into the area. The international nature of the Syrian crisis is what has caused it to become so out of control. Russia and Turkey are practically fighting a war through Northern Syria, turning the conflict much bigger than it would be. Countries such as Russia and Turkey need to stop sending military support into Syria, so the conflict can become more manageable and peace can be restored.

Premises

[P1]Russian forces backing Assad and Turkish forces backing the rebels are clashing in northern Syria, funnelling military power into the area and turning it into a warzone that has created a massive humanitarian crisis. [P2] This international proxy fighting is what made the crisis so uncontrollable, so if Russia and Turkey stopped sending military support the conflict would become far more manageable and peace could be restored. [C] Because outside powers have inflamed the war, Russia and Turkey should withdraw from northern Syria and the internationalisation of the conflict must end.

Counter-arguments

The ceasing of international involvement would be a disaster for Syria. Without the support of a broader global audience, Syria would not receive the funds or attention it needs. The crisis might be largely ignored and made much worse if international participants were to end their participation.

Rejecting the premises

[Rejecting P3] Turkey and Russia pulling their involvement would ultimately lead to less helpful resources in Syria.