The White House says it no longer recognizes Maduro as Venezuela's president so will not comply with the order.
The bolivar has lost 99.9% of its value in two years, but President Nicolas Maduro claims to have just the solution.
Weeks of marches amid rising political tensions have underlined how fed-up Venezuelans are with triple-digit inflation and chronic shortages of food and medication.
Take a deeper look into the "kamikaze" gas smuggling trade investigated on last night's episode of Black Market: Dispatches.
President Evo Morales said the new academy was Latin America’s answer to the US School of the Americas and its dark history supporting right-wing dictatorships during the Cold War.
Venezuela's electoral authority announced the next stage of the effort to force a presidential recall referendum cannot start before October, which means the vote itself could not happen until late January.
President Nicolás Maduro has signed a decree that allows the labor ministry to order "all workers with enough physical capabilities and technical know-how" to join a government drive to increase food production in the context of severe shortages.
The border between the two countries was closed last August. Days after its Sunday opening, Colombia’s government said it will close the border again.
This month seven people died, and 37 were injured, in violent protests and looting related to desperation to obtain food, and bungled police efforts to control the situation.