Which sentence would best add commentary to this paragraph? Obama voices his belief that the United States can stop atrocities without incurring too much risk.
Obama ends the speech by stating that the US needs to respond to the violation of international law to maintain power.
By reminding the audience that the US has had a central role in keeping the world secure, Obama builds support to maintain peace.
By naming the different groups he hopes to persuade, Obama builds pressure to support military action and create a unified response to the atrocities.