How technology change life in the west by

Technological advancement helped the west United States to connect with their close once. The technological advancement speed up meeting rates of West US people as the canals, train, railroads, and stagecoaches made it possible.

With the help of new technology, the whites secured themselves against war as they designed new weapons and arms.  Technological advancement helped in changed the spade of Great Plains as stalled which further resulted in the growing rate of beef cattle rising, dry farming, agriculture growth and etc. Transcontinental road connect the people which transfer of goods and services.

the indians crossed artificial boundaries, setting the stage for conflict

hello!

according to the passage the most suitable options are two. the first one is "by leading the aef to victory in several key battles" like the battle of saint- mihiel and the battle of cantigny mentioned in the passage you copied here. the second one is "by the aef and allied forces defeat germany" since the passage says that his army destroy the german resistance in the meuse- argonne offensive. and also, "by insisting that the aef operate as an independent force".

hope this