They want to change and take over the other nation.
Imperialism
There could be several terms that would define one nation staying out of the affairs of other nations. After World War I, the US entered a period of "isolationism" because of the thousands of US troops killed in the war that seemed to accomplish little, in the minds of the American public, and never did fulfill President Wilson's goal of making the world "safe for democracy." Non-intervention is another term that means not taking sides or getting involved in the affairs of another nation. Then there is also the term "neutral nation" when it refers to a nation that does not take sides during a war between other nations.
A region supervised by another nation is typically called a "protectorate." This arrangement allows the supervising nation to oversee the affairs of the region while still allowing it some degree of autonomy.
Culturally, nothing is different; one nation is free, while the other is a communist dictatorship.
?
The Americans refused the president Legue Nation
internationalism
yes
Russia, Belarus, Ukraine, Moldova, Kazakhstan (geographically and culturally)
Yes. Although that nation may try to get involved and fight for their opinion about the conflict. Sometimes,when,involved,they choose a side. Otherwise,sure, - they can stay quiet.
control of internal and external affairs of the nation or its government:
International Affairs.