TEHRAN, Young Journalists Club (YJC) - Separatist rebellions broke out against Ukrainian rule in both regions in 2014.
Moscow provided military help for the separatists, according to evidence gathered by Reuters, though Russian officials have denied providing material support.
Large swathes of the two regions are now under the de facto control of the Moscow-backed rebels, while Kiev says it is determined to re-assert its control, a position backed by most Western countries.
There was no immediate reaction from Kiev to Putin's order. Ukrainian officials are likely to react angrily to any indication Moscow is drawing the rebel regions closer into its own orbit.