Why did the usa joined ww1 (there are 2 answers)

This is the belief that a nation must develop and maintain a strong military force in order to pursue and defend its national interests.

States' compliance with the native american reservation treaties drawn up by the federal government for the native american nations is:

Which answer best describes an advantage of shipping goods by canal? a) most towns would rather have canals then noisy railroads b) goods could travel very fast downstream in the canal system c) traveling by boat is a much more relaxing way to transport goods. d) heavy loads of goods could travel by boat more easily then if pulled by horses.