Moving on to South America. I will not be including the Falkland Islands because those are under the dominion of the UK. Nobody, including anyone in the UK, knows why.
Also, I'd like to mention as a point of pride that I do not use Wikipedia for research. Nobody should.
Argentina: After securing the presidency in 2003, Nestor Kirchner would spend his presidential term courting danger in the interest of bettering his nation. First, he lifted legal protections from members of the military responsible for atrocities committed during internal struggles in the 70's. He impeached two corrupt supreme court justices. And finally, he took the Argentine economy off a dubious "US Dollar" standard that had been a source of economic turmoil for decades. In the wake of his presidency, Argentina is far from a stable nation, but its prospects are looking better than they have in a very long time.
Bolivia: President Morales of Bolivia comes from a background as a coca farmer. Among many positive social reforms, he has put a lot of effort into rehabilitating the international image of his profession. He'd like for the coca leaf to be recognized for its myriad of uses beyond that of drug production.
Chile: During WWII, Chile's massive deposits of copper were in high demand all over the world. Chile supplied copper ore to both Axis and Allied powers. In 1943, Allied demand was sufficient to allow Chile to safely disengage its trade with Axis powers, improving diplomatic relations with North American trade owners and partners.
Colombia: The legendary drug lord Pablo Escobar sustained the Colombian drug empire through a fascinating combination of diplomacy, civic responsibility, and terrorism. After hooking his organization firmly into national politics, Escobar spent heavily on local development, including housing. He was even part of a multi-cartel attempt to offer extensive public work funding and a payoff of the nation's entire foreign debt in exchange for political favor and leniency. When this offer was rejected, Escobar and the other cartels launched a massive terror campaign that featured bombings and assassination of high level politicians.