The country seemed to be teetering in that direction last week, when Mr. Poroshenko dismissed Ihor V. Kolomoisky, the billionaire governor of Dnepropetrovsk, an important industrial region in the east, apparently for sending armed loyalists to Kiev, the capital, to occupy the offices of two state-owned energy companies that are central to a business dispute.
Mr. Kolomoisky had been one of the government’s staunchest allies, and his militias had helped stop pro-Russian fighters from moving beyond the eastern regions of Donetsk and Luhansk, where the pro-Russian fighters have been waging war for nearly a year.
But recently, Mr. Kolomoisky had clashed with the government over the future of the energy companies, in which he owned a minority stake.
Masked armed men occupied the offices of the companies — UkrTransNafta and its parent company, Ukrnafta — for five days, until Monday, when Mr. Poroshenko ordered Ukraine’s state security service to arrest the men.
Mr. Kolomoisky emerged from the UkrTransNafta building after his men had seized it on March 19 to say they had just thwarted an attempt by “Russian saboteurs” to take control of the company, and cursed at reporters who asked about his presence there at such a late hour.
The building seizure unsettled Kiev, and members of Parliament, worried that other oligarchs with private militias would follow suit, threatening national stability, sharply criticized Mr. Kolomoisky.
The rally on Saturday evening was intended to tamp down these tensions and demonstrate that the city, and the former governor, remained loyal to Kiev despite the clash, supporters of Mr. Kolomoisky said.
“When we have war in our country, we cannot have any internal political disagreement,” Borys Filatov, a business partner and political ally of Mr. Kolomoisky, said in an interview before the rally.
“We are all citizens who understand if we shake the president, the country will fall apart.”
A few thousand people gathered in a cold rain on Heroes of Maidan Square, a central plaza formerly known as Lenin Square, and released blue and yellow balloons while politicians spoke dismissively, and to cheers, of the possibility of separatism here.
Mr. Kolomoisky was shown in a video tribute.
The rally wrapped up with a fervently patriotic set by a Ukrainian pop singer Ruslana, who praised the city and its departing leaders for keeping separatism at bay.
Other developments indicated that the breach in Ukraine’s domestic politics was mending.
Mr. Poroshenko flew to Dnepropetrovsk on Thursday to thank Mr. Kolomoisky and his team, an event that was televised.
“We parted very well, and we will cooperate,” Mr. Filatov said.
“There were no demands, and no slamming of doors.”
Mr. Kolomoisky became the most prominent example of a strategy adopted by the new government last winter, first embraced by former Prime Minister Yulia V. Tymoshenko, to halt the Russian advance in the country’s east by appointing the region’s business titans, who were in a position to sponsor private militias, as regional governors.
Mr. Kolomoisky, a banking and oil magnate and philanthropist supporting Jewish culture in Ukraine, was an enthusiastic backer.
“The idea was to save the country and save his assets at the same time,” Mr. Filatov said.
But the arrangement was always understood to be temporary.
Critics of the militias have long warned that they could easily turn against the national government.
After the confrontation at the oil company headquarters, Mr. Poroshenko said he would take steps to incorporate private militias like those controlled by Mr. Kolomoisky into Ukraine’s military.
Mr. Filatov said the oligarch’s backers in Dnepropetrovsk were considering forming a political party and would run on their accomplishments this year, including forming the militia, called Dnepro-1, and keeping the region out of separatists’ hands.
An acting governor has been appointed to lead the Dnepropetrovsk region.
Mr. Kolomoisky, Mr. Filatov said, wanted to use the rally to say goodbye to supporters and reaffirm his patriotism.
“As they say, the English leave without saying goodbye, and the Jews say goodbye without leaving,” Mr. Filatov said.
“And that’s us. We’re saying goodbye but not leaving.”
Source: The New York Times