At this point, it was already unrealistic for William II to suppress it.
The British position was obviously not effective on the side of the Austro-Hungarian Empire. Unless William II directly forced the Austro-Hungarian Empire to abandon action, the wheels of war would not stop for the Austro-Hungarian Empire.
However, the problem was that William II could not suppress the warhawks at home at this time. If William II unilaterally let the Austro-Hungarian Empire stop its actions, the prestige that William II had cultivated for a long time would come to nothing.
A monarch with an unsteady position and constantly changing alliances might even offend both the warhawks and doves.
The military mobilization of the Austro-Hungarian Empire became more and more frequent, and in response, Russia began to assemble its troops towards the border.