The Associated Press reported Wednesday that US and Colombian negotiators are nearing agreement on a plan to expand the US military presence in Colombia by allowing the US to base hundreds of Americans at a Colombian Air Force Base in the Magdalena River valley to support US anti-drug interdiction missions. A fifth and final round of talks later this month could seal the deal.

[inline:colombiaposter.jpg align=right caption="anti-Plan Colombia poster (courtesy Colombia IndyMedia)"]The base would take up the drug war slack left by the ending of interdiction operations from the international airport at Manta, Ecuador, which is set for this week. The Manta base had been home for some 220 Americans supporting E-C AWACS and P-3 Orion surveillance planes scouring northern South America and the eastern Pacific for vessels and planes they suspect are carrying drugs. But Ecuadoran President Rafael Correa refused to renew the US lease, saying the US military mission there violated his country's sovereignty.

Colombian officials told the AP the plan was to make Colombia a regional hub for Pentagon operations. The current draft of the plan, they said, would allow more frequent visits by US aircraft and warships to two naval bases and three air bases in Colombia, with the Palanquero air base being the centerpiece of the plan. Palanquero had been off limits to US forces until April for human rights reasons -- a Colombian military helicopter operating from Palanquero had killed 17 civilians in 1998.

But that's ancient history now. A bill already passed by the House and pending in the Senate would earmark $46 million for new construction at the base, which is home to the Colombian Air Force's main fighter wing. That funding would be released 15 days after an agreement is reached.

Colombian President Alvaro Uribe is one of America's few remaining staunch allies in the region, and acceptance of the base deal could further stress already strained relations between Colombia and its more left-leaning neighbors Ecuador and Venezuela. It's also certain to raise concerns about Latin Americans wary of US interventions in the region.

Such concerns are not helped by Pentagon planning documents that suggest that beyond its anti-drug mission, Palanquero could be a "cooperative security location" from which "mobility operations could be executed." In other words, a jumping off point for US military expeditionary forces.

[inline:eradication.jpg align=left caption="coca eradication"]The US has pumped several billion dollars of primarily military and police assistance into Colombia since Plan Colombia began in 1999. Originally defined as a purely anti-drug program, under the Bush administration, it took on the additional burden of counter-insurgency, defining the rebel FARC guerrillas as narco-terrorists who must be defeated.

Despite all those billions of dollars in anti-drug aid, Colombia remains the world's largest coca and cocaine producer. Neighboring Peru is second, and Bolivia is third. Bolivia under President Evo Morales also forms part of the emerging left-leaning bloc in Latin America.

Former Colombian defense minister Rafael Pardo, who is running for president in the May 2010 elections, told the AP that the radar and communications interception ability of US surveillance planes extends well beyond Colombia's borders and could cause problems with its neighbors.

"If it's to launch surveillance flights over other nations then it seems to me that would be needless hostility by Colombia against its neighbors," Pardo said.