A coup d’état is the sudden, violent overthrow of an existing government or leader by a small group, typically involving control of the armed forces, police, and other military elements. Unlike a revolution, which is usually achieved by large numbers of people working for basic social, economic, and political change, a coup is a change in power from the top that merely results in the abrupt replacement of leading government personnel.
Are you trying to clam that there was a peaceful transition from Viktor Yanukovych to Petro Poroshenko?
Ukraine's former PM rallies protesters after Yanukovych flees Kiev
however, if you look at YOUR definition - , a coup is when a group of armed people (military or just a crowd of armed guys, domestic or foreign, or both) seizing government buildings to install their government or make existing government work at gunpoint
This is exactly what happened back in 2014 in Crimea, Donetsk, and Luhansk. Local rebels and Russian military (openly in Crimea, posing as locals in Donbas) violently overthrew Ukrainian rule and put in Muscowite frozen statelets
What happened in Kyiv though was mass protests.
At night, a few hundred protestors, mainly students, were beaten by the infamous Berkut. The next day hundreds of thousands demanded the resignation of the minister of internal affairs.
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