How does Obama's presidency affect the world?

How does Obama change the world?
Obama seems to focus more on internal problems and be more willing to "tolerate terrorists" overseas, so American troops will retreat from Iraq and Afghanistan earlier than Bush expected.Before being elected he once told the crowd, "We will change this country. We will change the world, ..... There is nothing we can't do, nothing we can't accomplish if we are unified," Obama told the crowd. Perhaps he would listen to other countries more and wouldn't just expect a leading role in international relationships. Also, anti-American sentiment may be lessened when a "non-white" president has been elected. http://www.pennlive.com/midstate/index.ssf/2008/04/live_blog_from_barack_obama_ra.htmlBut who knows if all his promises are just "propaganda"?Watch this for Obama's potential influence in some experts' eyes:http://tw.youtube.com/watch?v=gkCaZoCuQVA&feature=channel