If Ukraine gains control of Crimea and within next 365 days:

• Putin remains the de facto leader of Russia: resolves YES;

• Putin loses the position of de facto leader of Russia: resolves NO.

Resolves N/A: If Ukraine doesn't gain control of Crimea before close, or Putin loses power before close and before Ukraine gains control of Crimea.

For this market control of Crimea is idicated by having both of:

• control of Sevastopol;

• control of entrance to Crimean Bridge from peninsula side, unless it is already completely destroyed.

Edit: changed definition of control from "control of 90% of the territory" to the above.