At any given moment, 4,000 U.S. troops are deployed in Latin America and as many as four U.S. Navy ships are plying the Caribbean and Pacific coastlines of Central America. U.S. pilots clocked more than 46,400 hours in 2011 flying anti-drug missions, and U.S. agents from at least 10 law enforcement agencies spread across the continent.
The U.S. trains thousands of Latin American troops, and employs its multibillion dollar radar equipment to gather intelligence to intercept traffickers and arrest cartel members.
These work in organized-crime networks that boast an estimated 11,000 flights annually and hundreds of boats and submersibles. They smuggle cocaine from the only place it's produced, South America, to the land where it is most coveted, the United States.
One persistent problem is that in many of the partner nations, police are so institutionally weak or corrupt that governments have turned to their militaries to fight drug traffickers, often with violent results. Militaries are trained for combat, while police are trained to enforce laws.
"It is unfortunate that militaries have to be involved in what are essentially law enforcement engagements," said Frank Mora, the outgoing deputy assistant secretary of defense for Western Hemisphere affairs. But he argues that many governments have little choice.
"We are not going to turn our backs on these governments or these institutions because they've found themselves in such a situation that they have to use their militaries in this way," Mora said.
Mora said the effort is not tantamount to militarizing the war on drugs. He said the Defense Department's role is limited, by law, to monitoring and detection. Law enforcement agents, from the U.S. Coast Guard, Customs and Border Protection or other agencies are in charge of some of the busts, he said.
But the U.S. is deploying its own military. Not only is the Fourth Fleet in the Caribbean, the Pacific and the Atlantic, but the Marines were sent to Guatemala last year and National Guardsmen are in Honduras.
The Obama administration sees these deployments as important missions with a worthy payoff. Hundreds of thousands of kilograms (pounds) of cocaine are seized en route to the U.S. every year, and the Defense Department estimates about 850 metric tons of cocaine departed South America last year toward the U.S., down 20 percent in just a year. The most recent U.S. survey found cocaine use fell significantly, from 2.4 million people in 2006 to 1.4 million in 2011.
Aboard the Underwood, the crew of 260 was clear on the mission. The ship's bridge wings bear 16 cocaine "snowflakes" and two marijuana "leaves," awarded to the Underwood by the Coast Guard command to be "proudly displayed" for its successful interdictions.
Standing on the bridge, Carpio's team spotted its first bale of cocaine. And then, after 2 1/2 weeks plying the Caribbean in search of drug traffickers, they spotted another, and then many more.
"In all we found 49 bales," Carpio said in an interview aboard the ship. "It was very impressive to see the bales popping along the water in a row."
Wrapped in black and white tarp, they were so heavy she could barely pull one out of the water. Later, officials said they'd collected $27 million worth of cocaine.
The current U.S. strategy began in Colombia in 2000, with an eight-year effort that cost more than $7 billion to stop the flow from the world's top cocaine producer. During Plan Colombia, the national police force, working closely with dozens of DEA agents, successfully locked up top drug traffickers.
But then came "the balloon effect."
As a result of Plan Colombia's pressure, traffickers were forced to find new coca-growing lands in Peru and Bolivia, and trafficking routes shifted as well from Florida to the U.S.-Mexico border.
Thus a $1.6 billion, 4-year Merida Initiative was launched in 2008. Once more, drug kingpins were caught or killed, and as cartels fought to control trafficking routes, increasingly gruesome killings topped 70,000 in six years.
- Film about man's crusade against child sex...
- Creeping landslide devouring part of Jackson,...
- Captain of sunken South Korean ferry, 2 crew...
- 13th body pulled from snow in Everest avalanche
- Some countries get Obama, but want his wife, too
- Photos: Celebrating Easter across the world
- Get married, stay married? No fault divorce...
- Jelly beans, chocolate and plastic eggs:...
- Utah, Oklahoma same-sex marriage cases... 47
- The dangers of financially illiterate... 31
- Obama: 8 million signed up for health care 28
- Appeals judges question right to sue in... 27
- Texas seizes FLDS Church's secluded ranch 23
- Police: Student ate more pot than... 19
- Sentenced but never jailed, robber who... 16
- Supreme Court weighs ban on false... 15