What did Jacob barter (trade) to waive the $80.00 fee to join the wagon train? in into the west

According to documents in wiesner et al., why has access to water been such an important factor in the rise of complex societies? how did ancient societies address the problems associated with harnessing these powerful resources? how have historians assessed and addressed this issue? cite the appropriate documents relevant to the response.

After world war 1 immigration was based on

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