As the Preamble to the United States Constitution states, a government is needed to "form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defense, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity." Simply stated, the purpose is to protect citizens on multiple levels. It is also to ensure a higher level of living.
When citizens join together and agree on certain principles of a civilized society, laws must be established to lay out the methods of achieving the desired results. In the United States, the government consists of elected officials who represent the needs, desires and goals of all citizens within the union. The government establishes the means of reaching the common ideals; keeping the union together; ensuring peace between fellow citizens; and promoting the best interests of the majority. It also protects the inherent rights of minorities and upholds the foundational principles of freedom, liberty and prosperity. It collects taxes to administers funds for common benefits such as national defense, infrastructure, social services, education, disaster relief and the advancement of technology. The collective aspirations of a nation of people are entrusted to the officials elected to establish and enforce laws.