Vladimir Putin the Russian opposition and by international observers from the Organization for Security and Co-operation in Europe for procedural irregularities. Anti-Putin protests took place during and directly after the presidential campaign. The most notorious protest was the Pussy Riot performance on 21 February, and subsequent trial. An estimated 8,000–20,000 protesters gathered in Moscow on 6 May, when eighty people were injured in confrontations with police, and 450 were arrested, with another 120 arrests taking place the following day. A counter-protest of Putin supporters occurred which culminated in a gathering of an estimated 130,000 supporters at the Luzhniki Stadium, Russia's largest stadium.
Vladimir Putin in the world who have achieved such status. Putin also practises karate. Putin co-authored a book on his favorite sport, published in Russian as "Judo with Vladimir Putin", and in English under the title "Judo: History, Theory, Practice (2004)." Benjamin Wittes, a black belt in taekwondo and aikido and editor of Lawfare, has disputed Putin's martial arts skills, saying that there is no video evidence of Putin displaying any actual noteworthy judo skills. Vladimir Putin Vladimir Vladimirovich Putin (; ; born 7 October 1952) is a Russian politician and former intelligence officer serving as President of Russia since 2012, previously