[img]http://d.yimg.com/a/p/ap/20100625/capt.8e517b2b83d646b0a6585bc6d42a81cf-8e517b2b83d646b0a6585bc6d42a81cf-0.jpg?x=130&y=95&q=85&sig=Lh4wZtmUTwuF888Z4WqSiQ--[/img]AP - After failing to resolve their differences on economic strategy, world leaders are turning their attention to grappling with some of the globe's toughest foreign policy problems.