The EU's still-evolving foreign service has also forged close links with African and Asian political and trading blocs and plays a growing role in coordinating often-competitive member-state relations with Russia, Brazil and China.

WSJ: Syria Debate Illustrates EU's Foreign-Policy Weakness

Many corporations are still siloed, with marketing, media relations and packaging executives rarely talking to one another, especially when it comes to coordinating and collaborating.

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Because overhauling relations with Latin America -- improving trade ties, developing stronger person-to-person bonds, coordinating diplomatic and international policies -- will benefit both sides, and it will also earn votes to the candidate who champions the approach.

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