Regiment or Regimental system (Ukrainian: "Полк" , "polk"; Ukrainian: "Полковий устрій" , "polkovyi ustriy") is a historical administrative, territorial, military and judicial unit of country's subdivision in Cossack Hetmanate and Sloboda Ukraine in 17th and 18th centuries.
The Little Russian identity was a cultural, political, and ethnic self-identification of the elite population of Ukraine who aligned themselves as one of the constituent parts of the triune Russian nationality.
 The identity was not supported by the majority peasant population, instead preferring the ethnonym Ruthenians ("Rusyny", русини) or Rus' people ("Rus'kyi narod", руський народ).
 The Little Russian identity combined the cultures of imperial Russian and Cossack Hetmanate.
Cossacks (, Russian: казаки́, "kazaki" , Belarusian: казакi, Polish: "kozacy", Slovak: "kozácki", Hungarian: "kozákok") are a group of predominantly East Slavic-speaking people who became known as members of democratic, self-governing, semi-military communities, predominantly located in Ukraine and Russia.
 They inhabited sparsely populated areas and islands in the lower Dnieper, Don, Terek, and Ural river basins and played an important role in the historical and cultural development of both Russia and Ukraine.
Polkovnik (literally ""regimentary"") is a military rank in Slavic countries and countries in the former Soviet Union mostly which corresponds to a colonel in English-speaking states, and oberst in several German-speaking and Scandinavian countries.
 The term originates from an ancient Slavic word for a group of soldiers and folk.
 However, in Cossack Hetmanate ("Hetmanshchyna") and "Slobozhanshchyna", "polkovnyk" was an administrative rank similar to a governor.
 Usually this word is translated as colonel, however the transliteration is also in common usage, for the sake of the historical and social context.
 "Polkovnik" began as a commander of a distinct group of troops ("polk"), arranged for battle.
Hetman of Zaporizhian Cossacks as a military title was not officially recognized internationally until the creation of the Cossack Hetmanate.
 With the creation of Registered Cossacks units their leaders were officially referred to as hetmans of His Royal Mercy of Zaporozhian Host.
 Before 1648 and the establishment of Cossack Hetmanate there were numerous regional hetmans across the Dnieper-banks, who usually were starostas or voivodes.
Yakiv Yukhymovych Lyzohub (Ukrainian: Яків Юхимович Лизогуб ; Russian: Яков Ефимович Лизогуб , "Yakov Yefimovich Lizogub") was a military and political figure of the Cossack Hetmanate and a member of a well known Cossacks family of Lyzohub.
The Royiska Sotnia (Company) (Ukrainian: Роїська сотня, "Royis’ka sotnya" ) was one of the sixteen territorial-administrative and military unit of the Chernihiv Regiment of the Cossack Hetmanate.
 The sotnia's center was the village of Royishche, now in the Chernihiv Oblast of north-east Ukraine.
The Lyubetska Sotnia (Company) (Ukrainian: Любецька сотня, "Lyubetska sotnya" ) was one of the sixteen territorial-administrative and military unit of the Chernihiv Regiment of the Cossack Hetmanate.
 The sotnia's center was the small town of Liubech, now in the Chernihiv Oblast of north-east Ukraine.
Hetman of Zaporizhian Host (Ukrainian: "Гетьман Війська Запорозького" , Russian: "Гетман Войска Запорожского" , Polish: "Hetman wojsk kozackich" ) is a former historic government office and political institution of Cossack Hetmanate (Zaporizhian Host) in Ukraine that was equivalent to a head of state.
 The office was liquidated on the edict of Russian Governing Senate of 17 November 1764.
General Officer Staff (Ukrainian: Генеральна старшина , "Heneralna starshyna") was a council of high-ranking officers who advised to Hetman on all affairs.
 It was the highest state administration of Cossack Hetmanate.
 General officers took part in the General Military Council and along with colonels composed the Council of Officers.
 In a peacetime the general officers acted as ministers.
 General officers took part in the General Military Council and along with colonels composed the Council of Officers.

Question: Which political party did a military and political figure of the Cossack Hetmanate associate with?
Answer: democratic