The petition urging Mr. Zelensky to support marriage rights for same-sex couples was initiated by Anastasia Sovenko, 24, an English teacher from Zaporizhzhia, in southern Ukraine, who identifies as bisexual.
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She had said that after reading an article about heterosexual soldiers rushing to marry their partners before heading to war, she felt sad, angry and frustrated that L.G.B.T.Q. soldiers did not have that option.
Mr. Zelensky, in his response, wrote that democratic societies are measured in part by the way they defend equal rights for all citizens and that “each citizen is an indivisible part of civil society, for whom all rights and freedoms fixed in the Constitution of Ukraine extend.”
“All people are free and equal in their dignity and rights,” he wrote.
Mr. Zelensky noted, however, that the Constitution of Ukraine states that “marriage is based on the free consent of a woman and a man,” and said the document could not be changed during a state of martial law, which he declared in February, after Russia invaded.