What was the most important reason why Wilson’s opponents argued against the League of Nations? The League of Nations failed to achieve major territorial gains for the United States. The League of Nations might have forced the United States to become an international peacekeeper. The League of Nations failed to sufficiently punish Germany for its actions in the war. The League of Nations did not include enough of Wilson’s Fourteen Points.

The league of nations forced America to become an international peacekeeper

Explanation:

After the Great War, most of the US was reeling from its effects and the chaos it wrecked on the US economy, which gave rise to isolationism. This meant that large portions of the public would be opposed to the league of nations, as it would force the US to mediate future conflicts.

it was certainly a debatable decision, mainly because it was based primarily on political - and not on legal or social - views. since the congress at that time was led by members of the republican party, and the territory that the tribes wanted to turn into an exclusively indian state was predominantly democratic, the proposal (as expressed in the constitution) did not succeed, but the constitution itself proved to be of crucial importance in the creation of the state of oklahoma, and, most importantly, it guaranteed the involvement of representatives of the indian tribes in the government of the future joint state.  

as a member of congress, i would have voted to ratify the constitution, or at least to have it tabled. ignoring it was an interested and partial decision.  

the western roman empire flourished, but the eastern portion of the empire struggled.