Do wealthy countries (like the Us) have any obligations to help the global poor or do our moral obligation stop at the US border?why?

What role did mazzini play in italian unification? a.) he dreamed of a united italy and took the first steps to achieving it. b.) he conquered the southern part of italy, including sicily. c.) he was the first leader of a united italy. d.) he was assassinated by the french government, making him a martyr.

Why was the agricultural revolution more successful in england than in the rest of europe?

How did roosevelt corollary and dollar diplomacy affect u. s. relations with other countries?