Could France and Russia strike the Ottomans before they entered the war?

What if France and Russia launched a pre-emptive strike on the Ottoman Empire as war began with Germany?

It might work before Ottoman entry, but only if the Allies could mobilize and position a large attacking force in time.

The question proposes neutralizing a likely German ally as the European war begins rather than waiting for Ottoman entry. A Franco-Russian attack might succeed if it moved before the wider Ottoman war was underway. The operational obstacle is that a large force would still have to be mobilized, transported, and placed for the strike in advance. This is a separate counterfactual from Gallipoli in 1915 and remains a possibility rather than an assertion about what Allied governments had prepared to do.