[6][14] It originated in November 2013 as a right-wing, paramilitary confederation of several ultranationalist organizations at the Euromaidan revolt in Kyiv,[9] where its street fighters participated in clashes with riot police.

[27] In the 2014 Ukrainian parliamentary election, Yarosh won a parliament seat as a Right Sector candidate by winning a single-member district with 29.8% of the votes.

[38] In December, he announced that he and his team would be withdrawing from the group entirely, declaring that Right Sector had fulfilled its purpose "as a revolutionary structure" and was no longer needed.

[47] Right Sector was formed in late November 2013 as a confederation of street-fighting soccer fans and right-wing nationalist groups: Patriot of Ukraine (Andriy Belitsky), the Social-National Assembly, Trident (Dmytro Yarosh), UNA–UNSO (Yuriy Shukhevych), White Hammer, and Carpathian Sich.

[60] The Israeli newspaper Haaretz reported antisemitic incidents involving Svoboda and Right Sector during the demonstration, where their militants were calling political opponents "Zhyd" and flying flags with neo-Nazi symbols.

[61] On 4 March 2014, the organization called on readers of its Vkontakte social-media page to "correct th[e] misunderstanding" that had been created in English and Russian Wikipedia that Right Sector is fascist and neo-Nazi.

[70] In February 2014, Yarosh and the Israeli ambassador to Ukraine agreed to establish a "hotline" to prevent provocations and coordinate actions when issues arise.

In Crimea and the East, a "Right Sector" vandalism spree targeting synagogues, Jewish cemeteries, and Holocaust memorials was widely seen as a Russian false flag attack.

[citation needed] On 27 March 2014, Right Sector supporters demanded Avakov's resignation and tried to storm the Verkhovna Rada (the Ukrainian parliament).

[92] The next day, the European Union's High Representative for Foreign Affairs, Catherine Ashton, stated, "I strongly condemn the pressure by activists of the Right Sector who have surrounded the building of the Verkhovna Rada of Ukraine.

[105] In the 2014 Ukrainian parliamentary election, Yarosh as a Right Sector candidate won a parliament seat by winning single-member district number 39 located in Vasylkivka Raion with 29.76% of the votes.

[107] In the same election, Boryslav Bereza, Right Sector's chief of information, also won a seat as an independent candidate by winning a district in Kyiv with 29.44% of the votes.

According to President of Ukraine Petro Poroshenko's parliamentary faction leader Yuriy Lutsenko, these events "result[ed from] the conflict of interests between illegal armed groups and a mafia overtly cooperating with law enforcers.

[121] Right Sector seized military weaponry from an Interior Ministry arsenal in western Ukraine, near Lviv, towards the end of the Maidan revolution.

[122] Following the collapse of the Yanukovych government, with police having largely abandoned the streets of Kyiv, groups of young men, including members of Right Sector, patrolled them armed mostly with baseball bats and sometimes with guns.

[126] On 17 August 2014 Right Sector accused the Interior Ministry of harbouring counterrevolutionary forces seeking to destroy the Ukrainian volunteer movement.

[127] It said that Deputy Interior Minister Vladimir Yevdokimov's followers among the police had illegally searched or detained dozens of Right Sector volunteers and confiscated weapons they had taken in combat.

[44][133] One of the main issues, according to Ukrainska Pravda, within the brigade was that the leadership allegedly separated soldiers from the Right Sector from recruits who were transferred from other parts during recent replenishments.

[11] Scholars Andreas Umland and Anton Shekhovtsov wrote in 2014 that Right Sector formed as a loose collection of small groups, outside parliament, that were ultraconservative and included a neo-Nazi fringe.

[49] In 2021 political scientists Daniel Odin Shaw and Huseyn Aliyev described Right Sector as ultranationalist, and described the paramilitary arm of Right Sector, the UDA, as holding a "generic form of Ukrainian ultranationalism", which allowed the inclusion of ethnic minorities, including Muslim Crimean Tatars and Chechens, and ethnic Jews, Poles, Hungarians, Greeks, and Romani.

[138] Die Welt, the New York Times, and Le Monde diplomatique have described some of Right Sector's constituent groups as radical right-wing, neofascist, or neo-Nazi, but also that it distanced itself from antisemitism.

[139][48][51] According to a publication in The Washington Post, "Operating in Ukraine are several nationalist paramilitary groups, such as the Azov movement and Right Sector, that espouse neo-Nazi ideology.

[20] The New York Times has written that "Right Sector, a coalition of ultranationalist and in some cases neo-Nazi organizations," has attempted to distance itself from antisemitism, citing Yarosh's pledge to fight racism in Ukraine.

[146] On 2 June 2015, the party sent an open letter to Kyiv Mayor Vitali Klitschko asking him to cancel a pride parade to be held two days later citing "danger of provocations".

[147] The letter also quoted Major Archbishop of the Ukrainian Greek Catholic Church Sviatoslav Shevchuk stating "Ukraine rejects the false values as gender ideology".

[148] In a Facebook post on 6 June 2015, Right Sector leader Dmytro Yarosh claimed the gay pride parade "spit on the graves of those who died and defended Ukraine", and promised that the group's members will "put aside other business in order to prevent those who hate family, morality, and human nature, from executing their plans.

"[149] Right Sector spokesman Artem Skoropadskyi stated about the pride parade that "gay propaganda is destructive and doing harm to our Christian nation, we can't allow that".

[149] The pride parade was held, and during the march five policemen were injured in scuffles after unidentified people attacked the rally with smoke bombs and stones.

[citation needed] According to Tryzub, its enemies in achieving this goal are ″imperialism and chauvinism, fascism and communism, cosmopolitanism and pseudo-nationalism, totalitarianism and anarchy, any evil that seeks to parasitize on the sweat and blood of Ukrainians″.

In December 2021, the General Staff of the Armed Forces of Ukraine refused to disclose any details on cooperation with Yarosh, citing the confidentiality of the information requested.