Complex sentence: Had Beneš held his line, Gottwald's ministers would not have been able to form a government, the only non-violent means of crisis resolution being to give way to the non-Communists or to risk defeat in early elections which the KSČ did not have time to rig.
Split into simpler sentences: Had Beneš held his line, the Communists would not have been able to form a government. The only non-violent means of crisis resolution being to give way to the non-Communists or to risk defeat in early elections which the KSČ would not have had time to rig.