The Cossacks

        The term Cossacks is applied to specific militaristic communities of various ethnicities living in the steppe regions of Ukraine. Towards the end of the 14th century, Ukrainian migrants from Lithuania had established a "host" in the Steppes of Ukraine. In the 16th century, a part of the cossack community moved to the other side of the Azov Sea, those are called the Don Cossacks. The Dnipro Cossacks of Ukraine formed the Zaporozhian Sich. Initially a vassal of Poland-Lithuania, the increasing social and religious pressure from the Commonwealth caused them to proclaim a Cossack Hetmanate, initiating a rebellion under Bohdan Khmelnytsky in the mid-17th century. Afterwards, the Treaty of Pereyaslavl with Russia signalled the start of the Commonwealth's decline but also brought Ukraine under Russian control for the next three hundred years.

        In the 18th century the rising Russian Empire's expansionist ambitions relied on ensuring the loyalty of Cossacks, which caused tension with their traditional independent lifestyle. This resulted in several rebellions. In some cases whole Hosts could be dissolved, as was the fate of the Zaporozhian Sich in 1775.

        The Cossacks of the Zaporozhian Host, who lived on the steppes of Ukraine, are a well known group of Cossacks. Their numbers increased greatly between the 15th to 17th centuries, led by poor Ruthenian nobility, merchants and runaway peasants from Poland-Lithuania. The Zaporozhian Cossacks played an important role in European geopolitics, participating in a series of conflicts and alliances with the Polish-Lithuanian Commonwealth and the Ottoman Empire. As a result of the Khmelnytsky Uprising in the middle of the 17th century Zaporozhian Cossacks managed to briefly create an independent state, which later became the autonomous Cossack Hetmanate, a suzerainty under protection of the Russian Tsar but ruled by the local Hetmans for half a century. In the later half of the 18th century the Zaporozhian Host was dissolved by the Russian authorities. Some of Cossacks' descendants have moved to the Danube delta region and Kuban, although after 1828 most of the Danubians have moved first to the Azov and later to the Kuban. Although today some of the Kuban Cossacks and their descendants do not consider themselves Ukrainians by nationality, the language they speak and their folklore preserves a significant Ukrainian influence.

        The Zaporozhians were renowned for their raids against the Ottoman Empire and its vassals, although they did not shy away from pillaging other neighbours. Their actions increased tension along the southern border of the Polish-Lithuanian Commonwealth, which resulted in almost a constant low-level warfare taking place in those territories for almost the entire existence of the Polish-Lithuanian Commonwealth.

        Around the end of the 16th century, relations between the Polish-Lithuanian Commonwealth and the Ottoman Empire, which were not cordial to begin with, were further strained by increasing Cossack aggressiveness. From the second part of the 16th century, Cossacks started raiding Ottoman territories. The Polish government could not control the fiercely independent Cossacks, but since they were nominally subjects of the Commonwealth, it was held responsible for the raids by their victims. Reciprocally, the Tatars living under Ottoman rule launched raids into the Commonwealth, mostly in the sparsely inhabited south-east territories. Cossack pirates, however, were raiding wealthy merchant port cities in the heart of the Ottoman Empire, which were just two days away by boat from the mouth of the Dnieper. By 1615 and 1625, Cossacks had even managed to raze townships on the outskirts of Istanbul, forcing the Ottoman Sultan to flee his palace. Consecutive treaties between Ottoman Empire and the Polish-Lithuanian Commonwealth called for both parties to keep the Cossacks and Tatars in check, but enforcement was almost non-existent on both sides. In internal agreements, forced by the Polish side, Cossacks agreed to burn their boats and stop raiding. However, boats could be rebuilt quickly, and the Cossack lifestyle glorified raids and booty. During this time, the Habsburg Empire sometimes covertly employed Cossack raiders to ease Ottoman pressure on their own borders. Many Cossacks and Tatars shared an animosity towards each other due to the damage done by raids from both sides. Cossack raids followed by Tatar retaliation, or Tatar raids followed by Cossack retaliation were an almost regular occurrence. The ensuing chaos and string of retaliations often turned the entire south-eastern Polish-Lithuanian Commonwealth border into a low-intensity war zone and led to escalation of Commonwealth-Ottoman warfare, from the Moldavian Magnate Wars to the Battle of Cecora and Wars in 1633–1634.

        Cossack numbers expanded with peasants running from serfdom in the Polish-Lithuanian Commonwealth. Attempts by the szlachta to turn the Zaporozhian Cossacks into serfs eroded the Cossacks' once fairly strong loyalty towards the Commonwealth. Cossack ambitions to be recognised as equal to the szlachta were constantly rebuffed, and plans for transforming the Polish-Lithuanian Two-Nations Commonwealth into Three Nations (with the Ruthenian Cossack people) made little progress due to the Cossacks' unpopularity. The Cossack's strong historic allegiance to the Eastern Orthodox Christianity put them at odds with the Catholic-dominated Commonwealth. Tensions increased when Commonwealth policies turned from relative tolerance to suppression of the Orthodox church, making the Cossacks strongly anti-Catholic, which at the time was synonymous with anti-Polish.

        The waning loyalty of the Cossacks and the szlachta's arrogance towards them resulted in several Cossack uprisings against the Polish-Lithuanian Commonwealth in the early 17th century. Finally, the King's adamant refusal to cede to the Cossack's demand to expand the Cossack Registry was the last straw that prompted the largest and most successful of these: the Khmelnytsky uprising that started in 1648. The uprising became one of a series of catastrophic events for the Commonwealth known as The Deluge, which greatly weakened the Polish-Lithuanian Commonwealth and set the stage for its disintegration 100 years later. The rebellion ended with the 1654 Treaty of Pereyaslav in which Cossacks pledged their loyalty to the Russian Tsar with the latter guaranteeing Cossacks his protection, recognition of Cossack starshyna (nobility) and the autonomy under his rule, freeing the Cossacks from the Polish sphere of influence. The last, ultimately unsuccessful, attempt to rebuild the Polish-Cossack alliance and create a Polish-Lithuanian-Ruthenian Commonwealth was the 1658 Treaty of Hadiach, which was approved by the Polish King and Sejm as well as by some of the Cossack starshyna, including Hetman Ivan Vyhovsky. The starshyna were, however, divided on the issue and the treaty had even less support among Cossack rank-and-file; thus it failed. Under Russian rule the Cossack nation of the Zaporozhian Host was divided into two autonomous republics the Cossack Hetmanate, and the more independent Zaporizhia. A Cossack organisation was also established in the Russian colony of Sloboda Ukraine. These organisations gradually lost their autonomy, and were abolished by Catherine II by the late 18th century.

        In Ukraine where the Cossackdom represents historical and cultural heritage, some people have been attempting to recreate the images of Ukrainian Cossacks. Traditional Ukrainian culture is often tied in with the Cossacks and the Ukrainian government actively supports these attempts. The traditional Cossack Bulava is one of its national symbols and the island of the Khortytsia, where the Zaporozhian Sich once existed, has been restored.