The narrative of anti-drug efforts was that it made women victims.
Last month, Congress approved a measure to expand the role of the military in anti-drug efforts.
"This is the most ambitious anti-drug effort that has ever been undertaken by our country," he said.
The researchers say they do not advocate treatment to the exclusion of all other anti-drug efforts.
But the rates of consumption were much greater among students in the control group, which was not exposed to the full anti-drug effort.
The report praised the Pentagon's commitment of resources to the anti-drug effort.
It was the first step in a Pentagon effort to increase military support for the anti-drug effort.
Over all, the Administration's anti-drug efforts over a period of several years originally called for more than $3 billion.
But he said the anti-drug effort "is going to cost more money; there's no doubt about that."
Colombia could make help the anti-drug effort off its coast in various ways, Administration officials said.
