This statement is false. Both the return of Boxer rebellion money and Hay's Japanese-American treaty worsened the relations between the United States and the Far East. Asian people felt that these events took place with little or no consideration of Asian interests, and that they were clear examples of imperialism.
Washington served as a general and commander-in-chief of the colonial armies during the American Revolution, and later became the first president of the United States, serving from 1789 to 1797