Comment by Mlller

No, the pressing issue of the Willy-Nicky telegrams was that Russia had mobilised her troops against Germany. Speaking about the Hague conference while setting troops in motion is hypocritical: you should wait out lengthy proceedings while we are invading your country. In the telegrams, William II tried to convince Nicholas II to stop the mobilisation. But Sergey Sazonov shortly thereafter made Nicholas II restart and escalate the mobilisation. At that point, a major war was inevitable.