Because of the high percentage of europeans living there, and are known as immigrant nations.
a) argentina, uruguay
b) brazil, venezuela
c) chile, cuba
d) peru, mexico

battle of saint-mihiel, (12–16 september 1918), allied victory and the first u.s.-led offensive in world war i. the allied attack against the saint-mihiel salient provided the americans with an opportunity to use their forces on the western front en masse.

explanation:

these the citzens and goverment come to terms some of the amendments gave the states more power then the goverment and some protocted americans rights