(Reuters) - Farmers armed with machineguns, rocket-propelled grenades and mortars forced government troops to abandon an operation to destroy their illegal cannabis crop in Lebanon's Bekaa Valley on Monday, a witness said.

No casualties were reported in the exchange of fire but two security force vehicles were hit by bullets, the witness said.

During Lebanon's 1975-1990 civil war, the fertile Bekaa Valley produced up to 1,000 metric tons (1.1023 * 1000 tons) of cannabis resin annually and 30 to 50 metric tons of opium, used to make heroin.
http://www.reuters.com/article/2012/...86M0DA20120723