Welcome, Capulet. My AIM is Kamilian1 or YinYangYami. Contact if you have any questions.
Wow, a lot of diplo to answer. Alright, here we go:
From Kazakhstan
To Russia:
You can take our land, but you can never take... OUR FREEDOM!
The only suggestion for peace we would accept is pre-war borders. Since you obviously seek to make us part of your Empire, peace is not applicable.
From Bohemia
To Greater Prussian Federation:
We would like to become a protectorate of your nation. When this situation with South Germany's hostilities is resolved in whatever way it will be resolved in, we will discuss possible union.
From Bohemia
To South German Reich or is it the Gross-Austrian Reich:
Your gesture of *ehem* kindness does not compensate for the deaths of the innocent Bohemians that were massacred by your officers. If indeed you did not know about or order an attack on Bohemian soil, then it only alarms us further that you are losing control of your own military. How many more soldiers or generals do you have in your Reich Army that take their own initiative? How many more actions are taken by your troops that you do not give permission for or do not even know of?
Instability in the chain of command in your country could destabilize the region.
From Poland, Switzerland, and Serbia
To Austria:
Misunderstanding or not, we condemn your hostility against the people that you are supposed to be allied to. Furthermore, either get control of your Army, or yield power to a more competent person.
From Hungary
To Austria:
It could happen to anyone, so we will not ostracize you from diplomacy. We will agree to alliance.
From Somalia
To India-Siam:
We will agree to alliance.
From Burma
To India-Siam:
We agree to defensive alliance.
From AZERBAIJAN
To Russia:
We will not attach ourselves to any foreign entanglements.
From NPC Asian Union Pact countries (Burma, Tibet)
To Mongolia:
Correction: YOU started this war, and became a casualty of your own military machinations and traps. Do not expect help from us.
From Kazakhstan
To Mongolia:
No, we really don't need help. We've been doing just great all this time! But how sweet of you to offer!

OF COURSE SEND US HELP! WE'RE
DYING HERE!
As for merging forces, if you are suggesting union between Kazakhstan and Mongolia, we decline immediately. It would be no different for Kazakhstan to be under Mongolia than it would be for Kazakhstan to be under Russia.