The Military and the War on Drugs

I guess if you call something a war, then the military have to wage that war.  That's probably why we have troops in Honduras.  Since Mexico has been able to cut the drug smuggling into that country, the smugglers have moved to Central America.  Honduras has become a major smuggling point. 

The NY Times calls our efforts in Honduras "the nation’s new way of war: small-footprint missions with limited numbers of troops, partnerships with foreign military and police forces that take the lead in security operations, and narrowly defined goals, whether aimed at insurgents, terrorists or criminal groups that threaten American interests".  Apparently, the military is assuming the job of police.  But, you'd expect that in a war, wouldn't you?

Supposedly, there are restrictions on our actions: We can't fire except in self-defense;  Nor can we respond with force if DEA people are in danger. What are the chances of those restrictions going by the board?

How many millions does this effort add to the cost of the War on Drugs?  What are its chances of success?