Putin reveals the moment he gave the order to take Crimea from Ukraine

Russian President Vladimir Putin has described a secret meeting with officials last year when Russia decided it would take Crimea, the Black Sea region that Moscow annexed from Ukraine last March.

In a trailer shown on state-owned TV on Sunday for a coming documentary, Putin said he met with security officials last February to make plans for saving Ukraine's then-President Viktor Yanukovych, who fled power after months of pro-European protests in the Ukrainian capital.

"We got ready to get him right out of Donetsk by land, by sea, or by air," Putin said. "Heavy machine guns were mounted there so that there wouldn't be much discussion about it."

Putin said that after the meeting he told the security chiefs that they would be "obliged to start working to return Crimea to Russia."

The minute-long trailer was overlaid with dramatic music and sweeping shots of the Crimean coast. The channel, Rossiya-1, did not specify when the full film would be released.

The Kremlin originally denied that it had sent troops into Crimea, though Putin later announced on state television that Russian troops had been sent in. Yanukovych was safely on Russian soil by late February 2014, when Russia's military was establishing its presence in Crimea.