Rebels in Afghanistan and Colombia are increasingly controlling land where illegal drugs are being grown, according to the United Nations.
From BBC News:
Afghanistan had a record opium harvest last year and coca leaf production in Colombia increased 27%, according to The World Drug Report 2008.
The UN Office on Drugs and Crime (UNODC) says most regions where [...]

Russia, China, and India are seeking to partner up to combat drug trafficking from Afghanistan. 
From Reuters:
China, India and Russia called on Thursday for the creation of a security belt around Afghanistan to halt the spread of heroin.
Russian Foreign Minister Sergei Lavrov said a joint communique on boosting links between the three large developing countries would [...]

According to the United States Department of State, the export value of Afghanistan’s 2006 opium export was $3.1 billion.
Source: 2007 International Narcotics Control Strategy Report, “Southwest Asia: Afghanistan,” United States Department of State, March 2007.

Source: United Nations Office on Drugs and Crime, “Illicit Drug Trends in the Russian Federation,” April 2008. 

28.7 percent of opium farmers claimed poverty alleviation as the reason for growing opium in Afghanistan. 
Source: United Nations Office on Drugs and Crime, “Illicit Drug Trends in Afghanistan,” April 2008. 

4 percent of the population, or 920,000 people, are estimated drug users in Afghanistan.
Source: United Nations Office on Drugs and Crime, “Illicit Drug Trends in Afghanistan,” April 2008.

Opium poppy cultivation has increased on average by 34 percent every year since the Taliban was disposed of in 2001.
Source: United Nations Office on Drugs and Crime, “Illicit Drug Trends in Afghanistan,” April 2008.
 

Source:“UNODC anticipates another large opium crop in Afghanistan in 2008,” UNODC, February 6, 2008.

Source:“UNODC anticipates another large opium crop in Afghanistan in 2008,” UNODC, February 6, 2008.