Unification of the state is the situation of the country that varies with the involvement of the nation in uniting together with the relationship of the states. The best cases of the unification are of Germany and Italy. In the year 1989–90, the republicans were unified.
Overall, President Washington suggested that our nation should be unified and never be divided by factors or political interests. this is the reason President Washington never supported the idea of forming political parties because this could divide people and confront the country which means the formula of divide and rule.
Washington's letter was published in the year 1796, and the document insisted that Americans should maintain unity and respect regarding internal or external circumstances.