Question

2. Why did the militarists hate the Treaty of Versailles?

They did not hate the Treaty.
It limited Germany's military forces when they wanted to rebuild.
It forced Germany's military to double in size when they wanted to actually downsize.
It combined the German and Russian military forces.

Answer 1

Number 2

It limited Germany's military forces when they wanted to rebuild

( also it humiliated Germany making them look like the bad guys and all they did was support an ally and they got blamed for the entire war )