He spoke about this in an interview with TASS.

Polishchuk recalled the 1999 treaty, according to which Crimea is also part of the Union State.

“This means that the Republic of Crimea, Sevastopol, as well as the new regions of Donbass and the Sea of ​​Azov, after joining Russia, became part of the Union State,” the source said.

On October 5, Russian President Vladimir Putin signed federal laws on the admission of four new regions to Russia.

Before that, the documents were approved by the Federation Council and the State Duma.