As a result of the versailles peace treaty which brought world war i to an end, a new supra-national entrusted with the maintenance of peace.

the answer here would be

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.

the first two years of american revolution was not very encouraging for the patriots since the british were far superior in sea power, arms and troops.