- Colonel Ruben Jimenez urges fellow soldiers to help allow humanitarian aid to Venezuela.
- The shipment of US aid is currently in Cucuta, Colombia, on the border.
- Maduro has vowed to prevent the aid from entering, labelling it a precursor of a US invasion.
An active-duty Venezuelan army colonel who is a military doctor has dropped his allegiance to President Nicolas Maduro, backing opposition leader Juan Guaido instead.
"Ninety percent of us in the armed forces are really unhappy," said Colonel Ruben Paz Jimenez said in a video released Saturday.
"We are being used to keep them in power."
He urged his fellow soldiers to help allow humanitarian aid into Venezuela. The shipment of US aid is currently in Cucuta, Colombia, on the border.