What  responsibilities does the United States have a world leader? Why?

Explanation:

As reported in Forbes Magazine, "leaders must motivate, instruct and discipline the people they are in charge of." Leaders use communication skills to brainstorm, share information, set goals, make assignments, lead meetings and be effective managers.

Damascus is widely believed to be the oldest continuously inhabited city in the world, with evidence of habitation dating back at least 11,000 years. Its location and persistence have made the city a nexus for civilizations come and gone.