When the country mobilized it’s troops, it gave the illusion it was going to attack it’s neighboring country. This caused an evacuation of that country.
Answer: The Soviet Union was liberating, they were taking the countries as puppets. The Soviet Union was getting stronger and stronger, while the US were liberating, not taking.
Explanation: I think it's self explanatory.
An armistice is an agreement between warring parties to stop fighting.