The Civil War influenced the role of government in the United States because it highlighted how the national government was the sovereign power.ollowing efforts by states to succeed and establish their own system of government the national government of the U.S. asserted is dominance and defeated the southern belligerents, thereby reasserting its dominance over politics and government in the United States following the war. 1  Comments (1). 2  Report.
1. a person or thing that announces or indicates the approach of something; forerunner. 2. (Historical Terms) obsolete a person sent in advance of a royal party or army to obtain lodgings for them.
In another sense, many business and political analysts use the phrase to describe a harbinger of the future. A melting glacier in Alaska, for example, may be described as a canary in a coal mine for global warming.One small event in an isolated area may not seem especially noteworthy, but it may offer the first tangible warning of a larger problem developing.n a political sense, a country's delegation abruptly leaving a meeting could be described as a canary in a coal mine for future negotiations. Some large corporations also use a similar strategy for future growth or reduction.