“I'm sure the time will come, and the Ukrainian flag will proudly fly over the city!” He wrote on Facebook.
Last year, Poroshenko also promised to raise the flag of Ukraine over Donetsk.
In addition, he repeatedly stated that the Ukrainian flag would fly over Sevastopol.
Crimea became the Russian region according to the results of a referendum held there in March 2014, in which the majority of the inhabitants of the peninsula voted to reunite with Russia.